I have chance to mod the Altec MX5021. I think so far MX5021 is one of good candidate to be modded (though I prefer Altec CS21 or 621/641 series, but they have been discontinued).
The target of this mod should fulfill 3 main criterias:
1. Affordable
2. The components should be easy to find
3. Significant result
It’s quite challenging for me, since you know that I don’t (never) expect much from a multimedia based computer (some of them are good, but not good enough for my taste). Anyway, since this is just for fun, so let’s do it.
Here’s the Altec MX5021 system:
This system has a little bit bright sound, metallic, a little bit harsh, not too detail for music, and average mid. I think the subwoofer is for movie (THX Certified) than music. Need to be improved a little bit in the low bass region. I think it’s good enough for most people, but not for me 🙂
The internal crossover uses “bad” non-polar eletrolytic. Also you can find small inductor with ferrite. This is bad. Very bad. They use 1st order for high pass section, F3 at around 8 kHz I think (if I calculate them correctly). The two mid woofer is not working on same region. I think they build a bandpass filter and both woofer works in different region. Need to fire up my simulator to check the actual graphs, but since I think this is just for fun, I don’t sweat a lot 😉
The components are: 4.7 uF, 6.8 uF, 47 uF, 0.8 mH, and 0.25 mH.
Below is just another view of the stock crossover.
I removed all the “tiny-little-cute” capacitor from the board. Made by Samxon. A well known brand for Capacitor in China, I guess. I’ve seen a lot of electronic consumer product use this brand.
All of the capacitor were upgraded. I used better capacitor for the high pass filter (the black tube). And for the mid-woofer application, I chose the lower grade (yellow tube) than the one used for the high pass filter. Because this is non-elco based capacitor, so you can see the giant size of the new capacitor. Well, I don’t have enough space there. Sorry for bad layout 😉
I’ll do more mods within next few days. I’ve order a special inductor and hope they can make it in small size so I can fit them inside. The cable also will be upgraded to a better one. Especialy the signal cable inside the crossover.
The result so far:
The high extension is absolutely better. I can hear more detail, even from music like Siti Nurhaliza (Cinta Tak Berganti), to Kari Bremens (A Lover in Berlin) and Rim Banna (The Mirror of My Soul). Even my friend (not an audiophile) can hear the different! The mid woofer have not reached my satisfactory level. Cable and capacitor size should be checked again. Will do soon. It’s clear enough that I need a new inductor to fix the mid-woofer. Just hope the ordered inductor can be fitted inside (though it’s crowded enough) or otherwise I need to find a better placement.
The subwoofer also need a little fix. But it should be on my last priority.
Read more:
http://jimmyauw.com/?p=120
jozzyDecember 17, 2006 10:28
wew broo… cool abiss… CS21 gua gimana nihhh 🙁 mau mod tapi gak ada skill dan knowledgenya 🙁
Andy TanDecember 29, 2006 10:58
Wow.. mr.. Jimmy u r such a Exellent Craftsman…. Kalo bolehh bantuin wa mod MX gwa juga donk…pretty please… 🙁
coz im totally amateur in Electrical Device& component:(
RadeonatorJanuary 4, 2007 23:20
wow, that was quite an awesome mod.
maybe you can help me and jozzy do a little works on our speakers? 🙁
audhaApril 19, 2007 12:06
Bro Jimmy, saya punya MX 5021 + SC Audigy2 kalau mau ningkatin kualitas suaranya secara software (driver + player) pake apa? Oya, kalo tetang Mod MX 5021 ini sptnya teknis banget ya… dan saya juga binggung mau beli kapasitor buat upgrade nya dimana? dan bisa ga dikerjain sama teknisi service an audio, krn saya ga ngerti tuh elektronika takutnya malah rusak kalo upgrade sendiri, mohon bantuannya bro jimmy, thx
RAKKKNovember 20, 2007 19:12
What are those huge capacitors made of? Polypropylene?
SkyDriverJanuary 16, 2008 00:34
Jim,
pls tell me the replacement components’ voltage and the uf…
Jimmy AuwJanuary 16, 2008 15:39
Same value as original.
Thank you.
hendra1981January 16, 2008 17:13
bro.. dari forum banyak anak2 tuh pingin modifikasi Altec Lansing MX5021, termasuk gw bro.. gimana kalau kita upgrade bareng2… gw yakin semua pasti pada mau.. tar saya yg atur soal pertemuan. tar bung Jimmy tinggak datang dan hasil apa yg kita kerjain bisa kita masukin ke forum sebagai bahan diskusi. dimana dengan speaker yg sudah ada kita tingkatkan kualitasnya.. tapi, bung Jimmy sibuk sih.. and gw ngerti lah… 😉
Jimmy AuwJanuary 16, 2008 18:13
Memang ada rencana ketemu di mana bro? Dari saya pribadi agak susah dari sisi komponen karena komponen rata2 stok lama saya…. barang baru gak tau ada atau tidak… kalo memang ada, rasanya saya bisa bantu untuk sekedar kasih panduan (jikalau memang pas waktunya cocok dan saya tidak janji)…
Coba kontak dengan bro Pemula_Kompie juga di CHIP Forum… dia juga suka mod…
Thanks.
SkyDriverJanuary 17, 2008 21:49
Thanks for fast reply 🙂
I had opened the satelite last night, but it’s a cut-cost product from AL, darn… (pls refer to the link below)
Just got 1 cap on the board, 50v 15uf for tweeter.
should i replace it with a bypass cap?
http://img33.picoodle.com/img/img33/4/1/15/skydriver/f_q03m_4e1a216.jpg
Jimmy AuwJanuary 18, 2008 09:18
Replace it with better caps first if you can… changing XO design is not recommended unless you know what you are doing…
SkyDriverJanuary 19, 2008 17:45
done.
Replaced the 50v 4.7uf with 100v 4.7uf bypass cap and changed the cable too (inside the satelite)…
anyway, cant found 100v 15uf cap to replace the 50v 15uf and i just leave it =.=”
thanks!
zilchApril 10, 2008 17:41
setelah dari article mod subwoofer
koq modifikasi satelit kayanya beda sekali dengan subwoofer
1. komponen2 kuning dan hitam itu apa tergolong kapasitor?mereknya? soalnya bentuknya beda
2. tinggal ganti dengan komponen yang value-nya sama yha?
3. kabel2 yang warna warni itu perlu diganti juga? klo iya ada saran untuk jenis kabel yang harus dipakai?
maximusApril 25, 2008 11:12
hi there jimmy,
i’ve open up my speaker and its nothing like ur crossover cct, urs are 3-way crossover cct but mine only 2-way crossover cct. i think my spk was one of the cut cost version (sad) anyway can u send me the crossover cct 4 ur speaker, i would like to change the crosover of my spker to see da diffrence, thnx.
Jimmy AuwApril 27, 2008 19:55
You can’t use different crossover design. Most likely, Altec has changed the drivers for your speaker, so they came up with new crossover.
Better stick with the one that you have.
Thank you.
maximusApril 29, 2008 19:05
i just want to try out how different the sound would be with 3-way crossover, i notice that they are stil using the same speaker but only change the crossover design to 2-way to save the build cost on the components used . i dont know what they did have an effect on the THX certification. maybe this can help afew out there whose not satisfied with the newer model sounds.
YanceMay 10, 2008 11:09
Bang Jim, aku udah putus asa nih nyari MX 5021, kalau udah bosan boleh dong kita beli bang, posisi kita di medan, gimana kira2 bang?
ferynovMay 11, 2008 05:38
@Yance cari speaker seri lain aja bwt di modif…. kan lebih asyik …rencana mau coba modif ACS 45.1
(white n black series) … blm ada wktu nh…pgn bgt…
virus4oJune 28, 2008 03:42
Please help me with the modding of this AMP http://my-cool-gsm.hit.bg/DSC00097.JPG
I wont to clear the sound.PLEASE HELP ME!!!
Sorry for my bad English.
Jirka TejklJuly 8, 2008 17:04
Hi Jimmy,
Nice article!
> Jimmy Auw Says: April 27th, 2008 at 7:55 pm
> You can’t use different crossover design. Most likely, Altec has changed the drivers for your
> speaker, so they came up with new crossover.
> Better stick with the one that you have.
From what I can see on your photos and on this one http://img33.picoodle.com/img/img33/4/1/15/skydriver/f_q03m_4e1a216.jpg , I would say they are still the same 4-ohm drivers, according to type numbers. I think the “performance optimization” process took place here making the product cheaper to build with “quality still acceptable for consumer”.
Could you, please, post a photo of the back side of satellite crossover PCB (if not the schematics)? At least it would be interesting to see what Altec’s engineers came with prior to the marketing department intervence 🙂
Regards,
JT
Jimmy AuwJuly 8, 2008 18:14
Hi,
I dont have the speaker on hand now.
Please be noted that same 4 Ohm speaker doesnt mean it’s the same one. We are not talking about impedance only, but also the T/S parameter. Different T/S parameters need different crossover design. We cant make sure they are the same or not unless we do the measurement for T/S parameters.
Thank you.
junAugust 5, 2008 21:36
can you help me how to mod my altec 5021.
Andri FahleviDecember 9, 2008 12:01
om…jimmy…ur my favorit for electronik man….
bs tolong di sebutin yg lengkap komponen2 yg diupgrade… aq gak tau itu apaan contohny yg kuning besar itu…
misal nie om…
1.kapasitor merk apa brp farad brp volt
2.dst…
gt lho om… makasih ya… smoga ditanggepin…
kalo bs jg dikasih tau kapasitor ini sebaikny diganti dgn yg ini…
pm diimel saya ya om….
oh ya, kalo kabel standart dr sub ke speaker tu di upgrade ngaruh besar gak dr yg standart?… ngaruhny apa?…
Jimmy AuwDecember 9, 2008 22:27
Hi,
Basically ganti dengan nilai yang sama aja.
Kapasitor kuning itu murahan, merek Audiophiler. Cari di Glodok aja.
Yang lain-lain juga modal cari di Glodok aja. Gak ada barang2 mahal koq. La wong speaker murah, jadi upgradenya jangan sampe seharga speakernya. Kurang lebih abis 300ribuan aja koq waktu itu.
Kabel speaker ngaruh bro… cukup banyak di kualitas suaranya.
Thanks.
Andri FahleviDecember 10, 2008 00:23
wah makasih banyak om jimmy…
kayany glodok kejauhan dech… saya kan tinggal dimalang… deketny jg surabaya…
oke dech… jadi pointny ganti nilai yg sama…
bagi saya sie nie speaker lumayan mahal (1,9jt)… kalo om jimmy kan duitny banyak hiks..hiks..
ya dech saya coba dulu… kalo ada trouble ntar saya ask lg dech…
thanks alot…
oh ya… sepertiny kabel yg rada mahal ketimbang komponen… kmrn saya tny ditoko hifi… tp lupa merkny… semeterny 45rb rencana mo saya panjangin kira2 ada saran kabel apa gak om?… yg lumayan murah dan lossny dikit…
Jimmy AuwDecember 10, 2008 21:03
Kabel saya aja pake Canare yang dulu beli cuman Rp 5000 semeter.
Hampir semua barang saya murah2 semua bro… dan rakitan pula. Kalo duit saya banyak sih mending beli jadi kali ye? :p lebih keren…
Thanks.
Andri FahleviDecember 11, 2008 00:18
thanx alot om… makasih infony… ntar q cari Canare dech…
wah… makany aq ya mikir2 beli kabel 1 meter 45rb… mana msh kul lagi…
kalo kabel dr satellite ke sub itu diganti jg gak ya?… kalo diganti apa jg ganti dgn canare?… rencanany mau q panjangin 5 meter mau ditaruh diatas…
oh ya om… cm sekedar info… kan gw jg suka audiophile… kalo om susah cari2 yg rare… contohny xrcd ato piringan hitam… bisa liat di avaxhome.ws browse aja audiophile ato apalah yg om suka… tp gw sih nyaranin donlot yg pnyny aksman(browse aja aksman) dia beli piringan hitam trus dishare… (tp gw gak nyaranin lho om, kan i*egal)… tp kalo cm sekedar buat dengerin halal koq… hehehe…
ZeguyDecember 19, 2008 09:53
Klo tuh caps diganti ama yg kelasnya solen, gak worth ya om jimmy.
Jimmy AuwDecember 19, 2008 22:25
Kalo menurut saya sih yang penting2 aja diganti yang bagus… Yang kurang penting sebaiknya tidak perlu… sayang duitnya… 🙂
Thanks.
AnonymousDecember 21, 2008 05:52
Iya, maunya Crossover giganti solen, caps power diganti elna for audio. Ama opamp.
Nah kira2 klo crossover yg diganti pake solen, worth gak. Atau cukup pake caps film biasa ?
Trims.
Jimmy AuwDecember 21, 2008 11:10
Pake Solen untuk yang high pass tweeter aja. Saya juga pake Solen hanya di posisi ini.
Thanks.
ZeguyDecember 22, 2008 16:40
jadi untuk tweeter aja pake solen. mid pake caps film biasa ya. Makasih sharenya om Jimmy.
Jimmy AuwDecember 22, 2008 22:54
Sip… Silakan dicoba bro.
Thanks.
pete frizzelJanuary 27, 2009 20:06
Hi;
One of the pins has broken on the DIN controller of the Altec Lansing MX.5021.The support provided by Lansing has not been good!
Please could you send me a wiring diagram for the 9 pin plug of this controller.
Many Thanks.
Best Wishes.
Pete Frizzel
Jimmy AuwJanuary 28, 2009 00:29
Hi,
Sorry I dont have any wiring diagram.
Thanks.
SergiyMarch 10, 2009 05:06
Hi,
Jimmy, (or some one else) could you post, please, a picture from the back side of satellite crossover (if it will be the scheme, I would be twice happier 🙂 )
Thank you in advance.
Anonymous is BuduxApril 23, 2009 08:35
Sorry Mr. Jimmy Auw I’ve forgot to fill the name.
Gwa ulang lagi jawabannya
Jimmy Auw berkata :
Kapasitor kuning itu murahan, merek A**********.
kenapa pakai kapasitor yang murahan? kenapa ngga pakai kapasitor yang murah tapi bagus?
induktor yang bagus itu dari bahan apa? mohon bisa disebutkan dari yang bagus sampai yang murah tapi tidak MURAHAN?
thx
Jimmy AuwApril 23, 2009 09:11
Hi,
Kapasitor “murahan” di kelas segitu (dan gampang diperoleh secara massal) ya memang yang kuning Audiophiler itu saja… tidak ada pilihan lain yang lebih bagus dari sisi cost/performance (kalo Anda nemu, boleh share di sini). Mau pake yang lebih “mahal” ya banyak saja, tapi apa iya speaker MM kelas begini mau habiskan ratusan ribu untuk kapasitor. Tentu tidak, bukan?
Saya sengaja highlight kata “murahan” supaya orang yang baca itu tidak menganggap mod ini menghabiskan uang banyak. Dan semua parts bisa gampang diperoleh di toko elektronik macam Glodok ataupun toko2 yang jual produk speaker/audio.
Silakan kalo mau upgrade dengan yang lebih “mahalan” 🙂 Perlu diingat juga, “murahan” tidak identik dengan jelek. Saya juga ada beberapa capacitor lama yang bersuara bagus dan murah, tapi umumnya barang NOS dan nyarinya susah. Makanya saya tidak sarankan untuk mod “massal” disini.
Induktor tergantung selera, ada yang suka solid core, hepta litz, sampai foil. Makin atas grade-nya tentu makin mahal. Jenis yang sama dengan beda produsen pun harganya beda (contoh foil dari Alpha Core vs Duelund). Mau yang “murahan” bisa gulung sendiri (atau hitung dan minta tukang trafo gulungin). Yang “murahan” gini suara belum tentu jelek, tapi secara penampilan dan kalo orang liat, pasti disebutnya “murahan” (lah iya karena harganya murah tho?).
Thanks.
BuduxApril 24, 2009 17:58
Thanks for your reply Mr. Jimmy
Yang Mr. Jimmy maksud dari murahan itu adalah harganya yang murah, dikira jelek, sorry for misunderstood you.
Jimmy AuwApril 24, 2009 18:20
No problem 🙂
Thanks.
SergiyMay 13, 2009 19:23
Hi everyone,
I have spend sometime modifying Altec MX5021, well, the sound were much better than initial one (thanks to Jimmy). But this quality didn’t satisfy my ears, (if someone made computations for the second modification of speakers (the one which has first order high-pass and second order low-pass filters) he saw that the range 1.5…8 kHz is simply canceled). Well, guys, two month ago I’ve bought real stereo system (two speakers Q-Acoustics and Pioneer amplifier), compare to which Altec is the generator of noise.Of course only speakers costs ~20% higher then all Altec MX5021 system, but difference is like between Ferrari and Fiat, it’s not important how you will tune the Fiat, it could be better or worse, but it will never become Ferari…
All the best.
MarmesJune 21, 2009 04:57
To remove the hiss I replaced the transformer inside for a toroidal one, and now I have them hiss free!:D
SergeyAugust 16, 2009 04:10
2 Marmes
What exactly toroidal transformer (it’s specs) you used please? I’m going to do the same for a long time!
Thanks
Jimmy AuwAugust 16, 2009 09:53
I didnt change the transformer.
Thanks.
SergeyAugust 16, 2009 14:59
2 Jimmy Auw
Yes, I know you didn’t. The guy whose post above did. The original transformer produces very annoying buzz i can hardly sleep 🙁
I checked four 5021’s subs – they all were buzzing, more or less.
Thanks for the work, Jimmy!
Jimmy AuwAugust 16, 2009 22:07
Hmm… very strange… How loud is the buzz sound?
SergeyAugust 18, 2009 14:49
As it is good heard from 6 meters in silent room at night. Can’t say more specific. I’d give to that buzz 28-30db.
Jimmy AuwAugust 19, 2009 09:33
Hmmm… this also could be affected by your electricity installation.
Thanks.
KuroSeptember 3, 2009 13:00
Mas Jimi.. apa mod diatas bisa dilakukan pada Altec CS21.. kira2 brp total biaya utk komponen2 yg digunakan..
Tenkyu ^^
Jimmy AuwSeptember 5, 2009 18:26
Hi,
Basically bisa saja. Tapi apa yang di mod dan biaya ya tergantung apa yang kita “harapkan” dari segi peningkatan kualitasnya.
Thanks.
SergeySeptember 7, 2009 16:53
Dear Jimmy,
what kind of caps you used in the speakers (the yellow and black ones). They are not elko type, but which exactly. And what their brands and values please?
Thanks a lot.
SergeySeptember 7, 2009 16:56
forgot to ask: are those new caps also non-polarized as original caps you removed?
thanx
Jimmy AuwSeptember 7, 2009 22:10
Black is Solen, Yellow is Audiophiler.
Both are cheap caps.
Just keep the original value.
The new caps are film based, non-polar.
Thanks.
SergeySeptember 9, 2009 20:54
Well, I’m not sure they are really cheap. It’s about $10-12 per one and hard to find.
Jimmy AuwSeptember 9, 2009 23:00
Where do you live?
Thanks.
SergeySeptember 10, 2009 02:18
I’m in Ukraine. Here is only Hitano or Samwha caps actually available. But I’m searching in USA too. No DigyKey.com nor Farell or Ebay did any result.
Thanks.
Jimmy AuwSeptember 11, 2009 09:10
I think eBay is a good source.
Thanks.
SergeySeptember 11, 2009 17:35
Hi again, Jimmy
look, there is polypropylene capacitors used in speakers. One of them is 47uf. I saw Solen or Dayton caps of that value – they are huge and expensive. Can I use a smaller value polyprop cap instead? If yes which value please?
Thank you.
P.S. What do you think of Xicon electrolitic caps. Are they goof enough for swapping originals on sub mainbord?
Thx again
Jimmy AuwSeptember 12, 2009 01:33
Hi,
I dont think you can swap with lower value (I mean, without affecting the whole circuit). Perhaps you can go with Nichicon. I wont use Xicon.
Thanks.
SergeySeptember 18, 2009 03:36
Hi, Jimmy
Look, while buying caps for speakers I found that film caps you used there can hardly be of same value as the original “samxon’s”, because 47uf cap from Solen, Dayton or some others are much bigger than that black tube on your photo. Could you clarify this please?
Thanks
Jimmy AuwSeptember 18, 2009 09:18
I use “yellow” 47uF caps not just one. Could you see there is more than 1 yellow caps there? All connected together to set 47uF value.
Thanks.
SergeySeptember 18, 2009 16:22
oh, i supposed so! 🙂
Thanks.
SergeyOctober 29, 2009 22:48
Hello Jimmy, how are you?
Your advice highly required. I’ve received MKP caps for satellites mod and found that there is no way to put the biggest 47uF cap inside the speaker body 🙁 (Why don’t they do low voltage/hi capacity MKP caps!?).
So I need plan B. I’m sure you know this another 5021 mode:
http://www.techenclave.com/guides-and-tutorials/modding-altec-lansing-mx-5021-dummies-130257-gars6.html
They modded newer version of MX5021 with altered crossovers, etc. Instead of swapping original caps in crossovers they bypassed one of them with 0,47uF MKP.
So what could you advice for our XO version? I’ll swap 4,7uF and 6,8uF to MKP’s. As for original tiny 47uF, I’ll replace it to better bi-polar electrolytic. Should I bypass that new elco cap with film 0,47uF as Gannu did? My friend engineer sais it has no sense by he is absolutely not an audiophile or music lover as I am. (But i’m not an engineer 🙂 )
So please give me your suggestion.
Thanks a lot.
Jimmy AuwNovember 1, 2009 00:43
Hi,
Most MKP is not available in low voltage, due to its natural construction.
Bypassing the 47uF elco with MKP/Film is a wise choice. Value between 0.22-0.47uF is OK.
Thanks.
gohan2091November 26, 2009 08:54
Jimmy,
I have had the MX5021 speakers for 3 years now but now they don’t work (I think the subwoofer is dead). What do you recommend I do? They are out of warranty so are they ready for the bin? or can a repair take place here?
Jimmy AuwNovember 26, 2009 23:58
Hi,
It depends on the problem…
Thanks.
rizalFebruary 11, 2010 20:37
pak jimmy, mau tanya kapasitor yang di satelit yg diganti kan ada 3 mcm… kok penggantinya ada 4 ya??
3 yellow tube n 1 blacktube…
mohon pencerahan\nya….
Jimmy AuwFebruary 11, 2010 21:46
Hi,
Ada caps yang saya paralel untuk dapatkan nilai yang saya mau.
Thanks.
rizalFebruary 12, 2010 10:12
ohh, apakah betul 3 caps samxon yg bpk lepas itu diganti dgn yg 3 caps yellow tube ya??
terus bapak menambah yg black tube utk dipararel lagi/???
thanks
rizalFebruary 12, 2010 20:12
Maaf, mau tanya lagi pak:
1. caps non polar yg bpk pake apakah kakinya sy bolak balik gpp kah?
2. 2 caps yellow tube yg dipararel itu valuenya brp pak? apakah benar yg 47 uF? trs voltnya pake brp pak?
3. solen blacktube itu penggati caps yg value brp pak??
4. kata bapak ke 3 caps yg diganti itu ganti value (Farad) yg sama ya, terus itu kan semua 50v, voltasenya pake yg brp ya pak enaknya??
maaf kalo byk tanya pak, msh belajar soalnya 😀
thx
Jimmy AuwFebruary 12, 2010 23:11
Hi,
Betul caps Samxon asli diganti dengan caps kuning Audiophiler. Posisi ini di decoupling mid/woofer.
Black tube (Solen) itu untuk high pass filter (tweeter).
Thanks.
Jimmy AuwFebruary 12, 2010 23:14
Hi,
1. Non polar tidak masalah bolak balik, tapi dibolak-balik ini suaranya bisa berbeda.
2. Yap, idealnya 47uF, volt biasanya minimal 100V untuk caps jenis film. Kalo elco, pake 25V aja cukup koq.
3. Caps asli untuk high pass tweeter.
4. Voltase asal tidak lebih kecil dari aslinya, then you should be OK.
Thanks.
rizalFebruary 13, 2010 09:40
kalo kaki non polar dibolak balik output suara bisa beda, yg ideal menurut Pak Jimmy posisi kakinya gimana yg baik pak?
thanks
Jimmy AuwFebruary 14, 2010 00:30
Silakan dicoba sendiri Pak. Idealnya outer foil itu ke input.
Thanks.
rizalFebruary 15, 2010 10:48
PAK JIMMY, barusan sy buka satelit mx 5021 sy, komp beda dgn py bapak…
disana ada cm 3 komponene aja,
yaitu: 2.0A 560uH, caps abu2 kecil 15uF 50v, dan caps kuning 4.7uF 50v aj..
mohon masukannya, enaknya dimod gimana ya pak??
1. 2 caps itu diganti smua or tidak?
2. kalo diganti dignti tipe n value apa pak??
[IMG]http://i47.tinypic.com/2lsbjmv.jpg[/IMG]
rizalFebruary 15, 2010 10:52
ini gbr satelit mx 5021 sy pak
http://i47.tinypic.com/2lsbjmv.jpg
rizalFebruary 15, 2010 11:15
kalo 2 caps di satelit sy itu tdk ada simbol”-” di tube capsnya apakah itu jg termasuk caps tipe non polar???
thx
Jimmy AuwFebruary 15, 2010 12:11
Halo Pak Rizal,
Memang ada kemungkinan desain XO diubah, karena bisa jadi ada revisi (seperti juga produk elektronik lainnya yang ada revisi).
1. Ganti caps yang 4.7uF dulu karena hasilnya paling signifikan di nada tinggi.
2. Tipe silakan dicari yang cocok sesuai dengan budget. Untuk yang 4.7uF, ganti dengan caps jenis film saja (yang murah macam Solen atau Mundorf putih).
Caps-nya memang berjenis non-polar.
Thanks.
rizalFebruary 15, 2010 12:26
1. kalo 4.7uF/ 50v diganti solen 4.7uF/100v gmn pak?
ato ada usul value yg recomennd? (budget ga masalah kok pak :D)
2. kalo caps kecil yg 15uf/50v saya ganti skalian gmn pak? enaknya pake type n value brp? (budget mengikuti)
thx pak
sory byk tanya… 😀
Jimmy AuwFebruary 15, 2010 15:09
1. Silakan (tiap caps punya karakter sendiri)
2. Silakan (tapi coba aja ganti yang 4.7uF dulu).
Thanks.
rizalFebruary 18, 2010 19:06
Udah sy ganti yg 4.7uF dgn solen black caps 4.7uF 250v, cari yg 100v ga dapet…. hehehe…trs sy mainkan lagu di pc… suara jadi lebih jernih pak 😀
tapi kok terasa lebih pelan ya volume nya pak??? dengan posisi volume yg sama (speaker n di foobar) terasa lebih pelan daripada sebelum diganti capsnya….
1. Ada saran selanjutnya pak? ato cuma perasaan aja?
2. yg non polar 15uF 50v apa perlu diganti pak? dgn tipe apa ya pak??
thx…
Jimmy AuwFebruary 18, 2010 21:37
Hi,
Mungkin pengaruh di efek frekuensi dari karakter caps itu sendiri. Kalo percaya ya ini memang terjadi, kalo ga percaya ya anggap aja cuman perasaan hehehe.
Yang 15uF sih ga gitu penting.
Thanks.
wahyu santMarch 15, 2010 11:33
Muanteb gan…alamatnnya dmn gan ?
sms ane di 081932008287
mr jeeApril 19, 2010 22:23
bos…minta pencerahan nih..TDA 7377 persamaan atau solusi lain pake apa ya…thanks before
jos homan ( Dutch )May 20, 2010 15:42
Hallo Jimmy,
I modified my 5021 speakers (new version) by making the sattelite cabinets stiff. On the bottem and top I glued 2cm thick granite,
and inside I used tile glue and CHEWED chewing gum ( ha ha !!). Also to stablelize the tweeter I used gum, and cotton for damping. I wired the x overs and drivers direct with thicker 2″ copperwire and removed the terminals and plates. they are open now. Also the subwoofer I made stiff by glueing in wooden braces and thicken the driver opening and used bigger screws to mount it, and used more glasswool. In the Amp I rewired ( 2″ ) all – connections to a central point near the trafo, rewired the subdriver 2″, and mounted new goldplated terminals. The cable to the preamp is shortened to 30 cm ….The result is beautiful. Sound is open and detailed, soundstage wide and the boom, boom, bassbox turned into a smooth souding sub woofer !!! The only complain is the tweeter,it stll is a bit harch, I hope to solve that with your tweaks. cant wait !!! Greetings Jos
prakashJuly 11, 2010 19:57
Dear jimmy,
I pleased find you on this website and your valueable rnd in elec products.I would like to have advice related to mx5021,the problem is after connecting and led light vissiblity Iam not able get the sound and I have fitted the cable wire properly into speakers and subwoofer as intruction.Accordingly to you what could be the possibility of this problem.please help me.
thks.
prakashJuly 11, 2010 19:58
my email is [email protected]
grixDecember 21, 2010 20:24
dude, i just bought my first altec speakers,,,they are the octane 7 model (vs4621),,,you think you can help me out on improving their SQ?? thanks
rafaFebruary 21, 2011 00:46
mas jimmy udah pernah modding altec atp3 blom???
kalo udah boleh tunjukin cara” ga??
Auw JimmyFebruary 21, 2011 22:58
Halo Mas Rafa,
Belum pernah Mas, tapi pada dasarnya sama saja koq.
Thanks.
Glo WaruwuMarch 4, 2011 00:41
mas jimmy, klo power supply mx5021 itu kekecilan ga yaa? bisa ga di suplay untuk satelit dan subwoofernya di pisah (tambah trafo)?
Tone Kontrol mx5021 punyaku rusak, yang berfungsi hanya tombol on.off. Sementara ini untuk ini saya bypass langsung ke input amplinya. Gimana caranya modif agar On/Offnya di buatin skalar biasa saja?
Trims
Glo
Auw JimmyMarch 4, 2011 22:58
Hi,
Sepertinya memang agak mepet. Kalo mau pisah supply tentu lebih bagus lagi.
Thanks.
AndreMarch 24, 2011 11:45
siang pak jimmy..
saya mao coba mod satelit speaker edifier da5000pro..sorry oot.. 😀
didalamnya ndak ada crossover dgn inductor,, hanya ada 1capacitor aja di tweeter.. dan tweeternya ini kaki 3 (satu kaki – , satu kaki + , satu kaki dibypass ama caps)
[IMG]http://i1223.photobucket.com/albums/dd502/awi01/IMG00167-20110307-0122.jpg[/IMG]
caps nyambung ke kaki (-) dan kaki yg kosong satu lg..
kira2 berpengaruh dan worth it gak kalau diganti capasitor nya dng caps film yang lebih baik ? trus pakai caps apa ? diantara capitole , mcap mkp , bennic atau audiophiler…
AndreMarch 24, 2011 11:47
http://i1223.photobucket.com/albums/dd502/awi01/IMG00167-20110307-0122.jpg
kalau wima mkp10 bisa untuk caps passive xo gak om jimmy ?
Auw JimmyMarch 24, 2011 23:32
Hi,
Untuk tweeter, pasti ngaruh banget kalo caps-nya diganti. Cocok yang mana tinggal sesuai budget dan selera. WIMA bisa dipake.
Thanks.
AndreMarch 25, 2011 01:15
oke,.
sekalian kalau cap wima mkp10 di spesifikasinya tertulis WIMA 1uf 105/100v mkp10.. nah angka 105 itu maksudnya apa ya ?
trus klo saya mau coba wima mkp10 untuk passive XO..harganya lumayan murah sih..tp ms rada bimbang antara wima mkp10 atau mundorf mcap mkp..mnrt om jimmy bagaimana ?
ambil yg 100v, 250v , atau 400v..? apa benar semakin tinggin volt nya semakin baik reproduksi suaranya..
thanks..
Auw JimmyMarch 25, 2011 12:05
Hi,
105 saya kurang paham maksudnya.
Kalo WIMA vs MCap sih bagusan MCap mestinya, secara grade juga uda beda.
Kalo speaker ambil yang voltase paling kecil (100V).
Thanks.
AndreMarch 25, 2011 22:06
waduh udah keburu ambil yg 400v..soale yg 100v agak meragukan bentuk n tulisan2 di capasitor wima nya.. drpd dapat palsu mending beli gedean dikit V ny,,harga jg selisih dikit..
trus ane beli vishay mkp 1837 0,01uf.buat bypass caps..
nah masangnya gimana ?
________
| |
| |
| WIMA |
|________|
| |
X——–X———- ke kaki tweeter A dan B
| |
| |
——–
| |
| Vishay |
| MKP1837|
|________|
X : bagian yg disolder n disambung,,
kaki tweeter A dan tweeter B tidak terpisah / tidak disambung.. maksudnya disolder ke tempat yg seharusnya di tweeter..
bener gak logika bypass caps nya om jimmy ? thx..:D
AndreMarch 25, 2011 22:09
waduh gambarnya ngaco jd nya..
maksudnya gini..
wima
kaki A | Kaki B
Vishay mkp1837
kaki C | kaki D
kaki A wima disambung dengan kaki C vishay trus kaki B wima disambung dengan kaki D vishay,,setelah itu baru disolder ke kaki tweeter masing2 sesuai dengan posisi aslinya,,bener gak pak jimmy ?
Auw JimmyMarch 26, 2011 23:26
Yup benar.
Thanks.
VerandyOctober 17, 2011 16:46
Jimmy, I am a no nothing about speakers.
Do u have any idea, why is my left-stereo active speaker not working as it supposed to be?
On each initial electric contact, the left-side produces sound but washed away then mute in instant.
Can u tell me the problem solving, please?
Auw JimmyOctober 17, 2011 22:34
Hi,
Something wrong with your amplifier for sure.
Thanks.
RomperOctober 31, 2011 17:30
Hello Jimmy and everyone!
Hope to get your help on my issue with AL-5021.
I’му done the sub mod as it’s explain here:
– replaced opamps to OPA2134
– replaced capacitors to better quality ones (and some of them with biger capacitance as recommended)
– used film caps for signal path
– replaced power supply to torroidal.
A few days or a week everything worked fine but then suddenly I lost timbre and volume control via remote unit of sub. In another one day the music has gone completely.
My friend -technisian diagnosed the TDA7433, basic audio-processor chip wich is used for volume/tone controll is dead.
I’ve found that rare TDA7433, we replaced it and my sub revived! Everything worked fine but not for long…
In a day or two I lost tone and volume control via remote (though light indicator of tone or volume level was working) and finally all the sub has shut up.
So I suspect the problem lies diper then just that chip. Probably I did something wrong in my mode, maybe bad soldering, shorting some leads or something wich causing TDA7433 to die.
Please advice, what would you check and test before replacing TDA7433 one more time.
Hope to get you replies,
Thank you
NazirJuly 14, 2012 10:59
Mr, Jimmy
Mohon bantuan infonya, Speaket Clipsch ProMedia 2.1 di Jakarta dimana ya carinya ?
Saya punya Altech CS21 rusak (power tdk mau ON, fuse-nya masih OK), karena product ini sdh discountinued maka saya mau cari kualitas yang setara CS21. Saya pakai lebih untuk Music
thank atas bantuannya
Auw JimmyJuly 14, 2012 22:05
Hi Pak Nazir,
Coba cek di Bhineka?
Thanks.
DracoJuly 19, 2012 16:20
hi there jimmy
i’ve throw away my SP88 n pick Swan M50W High end 2.1
but they sound too shy.
it’s sound too soft…
i.ve changed interconnect cable
use eSATA with vermouth Rhodium 3,5mm Jack
it’s give better high extension and more kicking bass. but vocal just not special i think???
i’d like to change satellite cable
which cable is better???
Canare 2s9f
Klotz series maybe????
or any other?????
i’ll use vermouth rhodium RCA as termination for new satellite cable
n also boomy sound from sub is still annoy me
could you help me please??
THnX jim
Auw JimmyJuly 19, 2012 21:06
Hi Draco,
How to define ‘vocal just not special’? Compared to what?
At certain point, multimedia speaker got the limitation. Probably adding tube buffer or tube preamp could help rather than changing the cable.
Thanks.
DennisAugust 16, 2012 09:53
Hey Jimmy, A few weeks ago one of the satellites of my MX5021 stopped working. There’s only very faint sound coming from it. Have tested the ‘faulty’ satellite on both left & right output from sub; definitely the satellite and not amp that’s faulty.
The crossover is only version with 2 capacitors and one coil. I’ve replaced both caps but it’s still not working. Most annoying.
Could it be the 560uH coil at fault or faulty speaker causing open/short circuit? I really would like to fix and not throw away a good speaker set.
Thanks
Auw JimmyAugust 16, 2012 10:16
Hi Dennis,
Coil is unlikely to fail, but you can measure them with LCR meter or check for continuity.
Then you can disconnect the 3 drivers, and connect only one of them. But again, unlikely them to be the source of problem.
Thanks.
Sumit KashyapOctober 20, 2012 20:31
Hey Jimmy,
I have Altec Lansing speakers (MX5021)for past 2.5 years and I had experienced gteat sound quality. Suddenly it had stopped working and when I had spoken to service center but they refused to accept to take out of warranty products.
To get it repaired from outside i wold require the circuit layout (schematic diagram) of motherboard to identify the root cause of the problem.
If you can help me out in getting the diagram, i would be very greatful to you.
Thanks,
Sumit Kashyap
Auw JimmyOctober 27, 2012 20:55
Hi Sumit,
Unfortunately, I dont have such diagram. But I assume basically most amplifier are similar, so you can start tracing yourself if you have some technical background.
Thanks.
PVS RAONovember 15, 2012 22:35
Sir Regards
I am using ALtec mx5021 for the last three years. Recently one IC TDA7433D (SO 20 track) got spoiled and required to be replaced,(as per Service Engineers advice)
I am from India, Hyderabad.
Can I get this component ?( One or Two Nos.only)
If so, Pl let me know the source please.
Auw JimmyNovember 17, 2012 22:50
Hi,
Unfortunately I have no idea how to get this. But if you know some electronic, I think you can change it with other type of chip.
Thanks.
DarrenJanuary 8, 2013 21:08
Hi Bro,
I’am facing difficulty to take out MX5021 power supply transformer for repair, it is glued on the base panel. Could you let me know how to take it out?
dzonikoMarch 27, 2013 08:36
is there someone have a wired diagram of controlller pin(9-pin) /??
VeselinMarch 28, 2013 07:13
is there someone have a wired diagram of controlller pin(9-pin) /??
AnonymousAugust 24, 2013 19:30
Hello..ihave altec lansing octane 7..how to improve its sound quality?highs and mids.
LiysSeptember 29, 2013 16:15
FYI, if you ever find your MX5021 fail with no power, before start messing around removing the TX, try if you can reach the fuse first and change it from there. It’s located at the side of the TX. If you can’t do it, then you will need a hammer and a big flat screw driver to slice the TX’s base off the box (Do it from the hole where the ac cable going into the box). That 4 screws (that seems holding down the TX-Yes they are but It’s glued too!) only be needed to hold the TX once you hack the TX base off the box. Replace the fuse with the same rating, I think it was A slo-blo (forgot the rating) but I change with a fast blo, still works, only I add a fuse socket by drilling the back plate (plastic), so I can change the fuse anytime without removing all those 12 screws (I hat ethat!). Hope this help.
Buat Pak Jimmy, great article! Saya ada pertanyaan, munkgin krn lama g ke pake atau mismatch impedance ke satelite… kedua satelite pengganti stattering… ngadat gitu. jadi ceritanya satelitnya hilang diambil waktu saya pindah rumah, dulu saya taruh di langit2 tersembunyi, orang yg bongkar kali yg ngambil. Nah skrg saya ganti pake satelit murahan saya beli 150rb. Setelah ngadat saya cek impedance satelit nya sekitar 14ohm, makanya saya beliin satu lagi dan konek parallel, sekarang jadi sekitar 7Ohm. Pertanyaan, yg mana yg harus saya curigain kerusakannya, apakah yg 7265 atao elco yg ke 7265 (mungkin kering?) atau opamp yg ke satelite? Dan ada tips melepas kabel speaker yg pake socker tapi di lem lagi ke PCB? thanks sarannya Pak Jimmy!
Auw JimmySeptember 30, 2013 19:17
Hi Pak,
Setelah paralel jadi 7Ohm apakah normal? Biasanya Ohm makin besar sih ga masalah, dan ga se-berbahaya Ohm speaker dikecilkan.
Mungkin sebaiknya dilihat fisiknya dulu saja. Elco kering mungkin saja, tapi dalam kasus ini mungkin kecil kemungkinan.
Kalo cuman gluegun, biasanya dicongkel bisa sih.
Thanks.
em.nurNovember 2, 2013 19:04
mas jimmy mo tanya berbedaan kebel canare
L-2T2S
ama canare L2B2AT, bezanya di apanya ya ?
gmna.dari segi kualitas & penggunaannya ?
Auw JimmyNovember 4, 2013 17:34
Hi Mas Nur,
Maaf saya belum pernah coba yang L2B2AT.
Terima kasih.
em.nurNovember 6, 2013 14:49
ok.
mas jimmy mo tanya lagi
saya kan sedang modif atp3,
untuk bagian subwoofer ke satelit (yang terdapat tombol vol,tweet,mid,bass) apakah harus diganti juga?
kalo emang harus diganti,harus pake kabel jenis apa?
kalo yg satelite sebelah kiri ya emang harus diganti, seperti yg telah mas jelasin pada
pertanyaan2 diatas .
jika me_replace capasitor dengan nilai yg sama
namun merknya berbeda2 dari beberapa capasitor
yang di replace,
seperti ;
rubycon,nippo dan panasonic
gmana nanti hasil
yg akan terjadi ?
plz, penjelasan & solusinya.
Auw JimmyNovember 6, 2013 16:58
Hi,
Sebaiknya diganti juga kalo memang memungkinkan. Pilihan kabel saya serahkan kepada selera Anda.
Tidak masalah dengan capacitor yang berbeda-beda. Tiap capacitor punya kelebihan/kekurangan dan juga karakter suara masing2. Jadi silakan dipilih yang cocok.
Terima kasih.
em.nurNovember 7, 2013 04:55
woo gitu ok2 .
nih sekarang saya dpet masalah baru lagi mas pada atp3, knapa ya pada saat dimana saya memutar suara dgn suara bass yg agak kuat, suara yg terjadi seperti bleber bleber gitu…..greek greek… berasa kayak membran woofernya ada yg robek,tapi setelah saya liat koq baik2 aja.
gmana ngatasin hal tsb mas?
tapi kalo volumenya gk saya tinggikan,
masih batas.normal sih,tapi.klo saya tinggin dikit
duh jadi kacau bgt suara bassnya.
apakakah gulungan yg ada woofernya ya yg dh
gk kuat.atau apanya ya mas ?
mohon penjelasannya kembali dri mas jimmy.
em.nurNovember 7, 2013 07:11
oiya mas.
caps yg 10000/25v udah saya ganti
dgn merk nippon chemicon dgn nilai yg sama.
apa iya penyebab bass mbleber tsb
karna caps.nya palsu ?
Auw JimmyNovember 7, 2013 14:29
Hi Mas Nur,
Harus didengar langsung, Mas. Saya tidak bisa menduga2 itu bunyi apa.
Kalo ragu, coba kembalikan caps-nya dulu saja ke yang asli.
Terima kasih.
em.nurNovember 7, 2013 15:03
sebelumnya pake yg samxon juga
kayak gitu tetep ada suara suara bass bleber.
pokoknya suaranya bassnya gak bisa maksimal.
kira2 rusaknya dimananya ya mas
Auw JimmyNovember 8, 2013 14:17
Hi Mas Nur,
Sulit untuk dilacak ya, karena bass bleber bisa jadi karena amplifier/elektronik, bisa jadi karena speakernya (tapi tidak harus membrannya robek). Mungkin lebih pas kalo dibawa ke teknisi elektronik untuk dicek.
Terima kasih.
ThomasJanuary 5, 2014 05:17
Hi,
do you know if I have any chance to recycle the MX5021’s subwoofer in a 5.1 system whith a yamaha RXV475 home cinema amplifier, and how to do it ?
I have already used the satellites as rear surround speaker and it gives good results even if they are 4 ohms.
Thank you for any answer that could help, regards.
Auw JimmyJanuary 5, 2014 22:00
Hi,
If your receiver has amplifier on the subwoofer channel, the you can simply connect the output to the Altec’s sub directly. You have to disassembly the sub (remove the amplifier and all electronic circuit inside). But if your receiver doesnt have amplifier on the subwoofer out, then you will need separate amplifier which I dont think it’s a good (or easy) approach.
Thanks.
TotskiMarch 14, 2014 10:30
hey people, anyone selling their broken mx5021, i will buy it. email me at [email protected]
dayrscMay 7, 2014 01:00
Mas, apa benar kabel speaker atau interkonek yang jelek itu ciri2nya seperti bass jadi letoy/lemes, midrange tipis/ceking seolah terbenam dan suaranya jadi suram/kurang tegas??? Soalnya aku punya speaker 800 ribuan yang bunyinya ngawur dan berantakan banget, kalah telak dibanding speaker 200 ribuan punya temenku. Mohon petunjuknya, mas.
dayrscMay 9, 2014 05:10
Klo sempat tlg dijawab ya mas, telat jg ga apa2. Kalo ternyata kabel bawaannya yg jelek jadi penyebabnya, ak akan berangkat ke surabaya buat cari kabel. Disini tempatnya pelosok, yg ada hanya kabel harga 5000-8000an, udh kucoba pake tp sepertinya ga ada perubahan, suaranya tetep loyo dan gk bertenaga. O ya speaker ini Fenda R50, padahal tipe dibawahnya cukup banyak yg blg bagus, masa diatasnya spt kualitas speaker 150ribuan. Seperti ada yg ga beres dg speaker ini, mas
Auw JimmyMay 9, 2014 10:51
Hi Mas Dayrsc,
Seharusnya kabel tidak akan membawa pengaruh sebanyak itu, kecuali kabelnya memang sangat2 keterlaluan jeleknya. Saya tidak bisa beri komentar karena tidak lihat langsung barangnya. Silakan dicoba ganti saja sama kabel yang mendingan (at least yang fisiknya ok dan penampilannya lumayan, macam Canare, Belden, etc).
Terima kasih.
Auw JimmyMay 9, 2014 10:54
Hi Bro Dayrsc,
Seperti yang sudah saya bilang di post di atas, kabel seharusnya tidak membawa perubahan sedrastis itu.
Mana yang tidak beres tentunya harus dicari tahu dulu. Saya tidak berani menyalahkan salah satu komponen tanpa melihat/mendengar fisik/suaranya.
Terima kasih.
dayrscMay 11, 2014 06:38
Lalu menurut bro Jimm, ciri2 kabel jelek pada speaker itu seperti apa? Lebih pengaruh mana antara kabel interkonek dan kabel satellite?
Minta saran, speaker ini bassnya besar tapi sangat tidak bertenaga (kopong dan gladuk2 gitu), mid tenggelam dan highnya terlalu ngecring, kira2 merk kabel apa yg cocok utk membuat midnya lebih maju dan tebal? sekalian jenis/seri kabelnya ya bro. Kupingku ga termasuk ngrepotin, sebelumnya cuma pake speaker 150 ribuan 2x dan udah merasa enak dengerin speaker temen yg 200 ribuan.
Terima kasih yah bro udh jawab sebelumnya dan maaf skrg tanya lagi
Auw JimmyMay 12, 2014 00:06
Hi Bro Dayrsc,
Untuk speaker entry level, seharusnya kabel standar macam Canare, Mogami, Belden yang harganya 5000-15000 semeter sudah lebih dari cukup.
Saya tidak yakin penggantian kabel akan bisa membantu bro. Saran saya, mending ganti speaker. Effort untuk melakukan modifikasi speaker tersebut menurut saya akan tidak sepadan dengan hasilnya.
Kalo memang sudah cukup dengan speaker yang 150rb-an, saran saya jual saja speaker yang ini (seingat saya lebih mahal harganya?) lalu beli yang 150rb-an tadi.
Terima kasih.
dayrscMay 12, 2014 01:40
Bener bro Jimm, lebih mahal sekitar 675 ribuan (waktu beli Fenda ini 825 ribu). Ah, payah nih si fenda, belum pengalaman buat speaker + reviewers nya punya penyakit budeg, masa gitu dibilang bagus, benar2 menyesatkan. Maaf ya bro kalo kurang sopan, abis kuesel banget.. udh nabung lama niat utk nyenengin kuping malah dapat jauh dari yg dibayangkan (pgn peningkatan sedikit belum kesampaian). Ogah lagi deh beli tanpa audisi, kapok… Ok bro, terima kasih ya udh meluangkan waktunya + curhat dikit.
Auw JimmyMay 12, 2014 09:31
Okay bro.
Terima kasih.
dayrscJune 2, 2014 00:17
Bro, datang lage neeh…hehehe ..
Masalahnya sama spt diatas, cuma aku ganti cara penyampaiannya, sepertinya penjelasanku sebelumnya terlalu berlebihan, jadi kayak ringset berat gitu speakernya, hehehe…
Gini bro, speaker ini suaranya tipis kering, bass ga ngangkat, intinya bersuara kaku atau ga lepas.
Mau cerita dikit.
Aku pernah punya speaker sebelum fenda r50 ini, yang juga bersuara hampir sama, waktu aku sambung kabel speakernya langsung ke woofer dg cara diikatkan (ga disolder karena ga bisa nyolder), suaranya yang sebelumnya lemah dan kering, langsung berubah drastis, jadi jauh lebih bertenaga dan basah, pokoknya enak banget didengernya, tapi sayangnya itu semua cuma bertahan 3 hari, suaranya kembali loyo dan kaku, kabel speaker yg tadinya cuma diikatkan terlepas, udah aku coba ikatkan lagi, berkali2 sampai banyak kabelnya yang putus2, tetap ga bisa enak lagi, karena frustasi aku menyimpulkan bahwa yg merubah suaranya bukan gara2 kabelnya yang diikatkan, melainkan listriknya yang korslet.
Itu kejadian thn 2003, waktu itu belum kenal internet dan masih sangat culun.
Yg jadi pertanyaan, yang membuat berubah suaranya itu sebenarnya apa? Karena kabelnya yang diikatkan atau karena listriknya yang korslet, atau cuma kebetulan semacam keajaiban sesaat gitu?
Suara fenda r50 ini hampir sama persis spt speakerku yg dulu (skrg udah ga ada). Barangkali ada harapan utk R50 ini mengalami hal serupa spt speakerku sebelumnya, tapi ga utk 3 hari aja.
Mohon pencerahannya bro Jimm, telat ga apa2
Auw JimmyJune 2, 2014 09:57
Hi Bro,
Sepertinya hanya keberuntungan saja atau mungkin ada faktor eksternal (listrik, settingan, etc). Karena terbukti kan setelah tiga hari hal itu berubah (even kamu pake kabel yang sama).
Seharusnya perubahan itu mestinya bisa dilacak, tapi rasanya akan sangat merepotkan dan butuh pengecekan langsung.
Terima kasih.
dayrscJune 2, 2014 12:53
Berubah setelah terlepas kabelnya, bukan berubah sendiri… Kalo ga terlepas, mgkn suaranya akan tetep enak sampai speakernya rusak…
Suara jenis ini (tipis kering, kurang lepas) sepertinya udah jadi penyakit umum speaker. Cukup banyak juga orang2 (kenal maupun ga kenal) yang punya speaker mengalami masalah sepertiku, cuma kebanyakan ga peduli…
Aku ada 2 usb speaker 150 ribuan, meski suaranya cempreng dan butek tapi aku tahu suaranya udah lepas, jadi ga pernah mengeluh.. Beda dg si r50 ini, suaranya berat, ketahan seperti orang lari digandolin gitu, bener2 kurang nyaman banget didengerinnya. Masa bro ga bisa membedakan atau pernah merasakan jenis suara seperti itu??? Keseringan muter pake speaker yang mahal2 neh… jadi ga ada kekurangannya, hehehe (just kidding, bro..)
Mohon dimaafkan kalo ngomongnya kebanyakan..
Auw JimmyJune 2, 2014 13:25
Hi bro,
Maaf, kemampuan saya masih terbatas untuk bisa mengenali suara dari jarak jauh, tanpa mendengar langsung. Karena saya rasa setiap orang punya standar yang berbeda-beda untuk definisi kering/loyo/kurang bass dsb. Jadi agak sulit buat saya untuk menebak-nebak dari jarak jauh.
Cuman dari penjelasan bro, sepertinya memang bukan dari kabel. Kalo cuman kabel, mestinya setelah lepas langsung dipasang lagi bunyinya sama donk.
Terima kasih.
dayrscJune 2, 2014 19:02
Sebetulnya aku minta pendapat atau saran dari bro, harapannya sih bro akan menyarankan “Ooh… Suara yang berubah itu gara2 kabelnya langsung dihubungkan ke woofernya, ga pakai perantara colokan. Soal suaranya yang ga bisa balik enak lagi, mungkin kamu ngiket kabelnya kurang kenceng, coba disolder.”
Hehe …
Cuma contoh ya.. kalo udah tahu gitu sih, aku ga perlu tanya dan ngrepotin bro. Aku cuma minta masukan dan kepastian dari orang yang bener2 ngerti masalah speaker dan audio..
Soal didengarkan dari jarak jauh ya aku tahu ndak mungkin lahyaw. Cukup dikira2 aja.. Kan udah aku jelasin ciri2nya dg sangat rinci, saking rincinya sampai aku ga enak dg omonganku sendiri yang membuat speaker fenda r50 ini tampak ringsek.
Aku yakin kalo r50 ini keluar suara aslinya bakalan enak banget, jauh lebih enak dari speakerku dulu waktu keluar suara aslinya.
Mohon percaya bro, dulu speakerku pernah berubah suaranya dg drastis, aku ga mungkin salah denger, cuma aku ga tahu pasti penyebabnya apa, makanya aku tanya bro, kali aja tahu dan mau kasih tahu, lalu akan kuterapkan pada R50 ku yang lagi mabok berat ini
Auw JimmyJune 2, 2014 19:19
Hi Bro,
Kalo gitu bro coba solder saja untuk meyakinkan. Secara saya rasa tidak akan berbeda, makanya tidak saya sarankan.
Bukan saya tidak percaya kalo suaranya berbeda, tapi memang kemampuan saya tidak cukup untuk menerawang sejauh itu.
Coba kamu cari dokter yang paling top sedunia, lalu kamu konsultasi via email dengan bilang dulu badan kamu sehat, tapi entah kenapa sekarang mudah lelah, etc. Pasti kamu bukan sugesti, tapi saya yakin dokter itu juga tidak akan bisa beri jawaban pasti. Mungkin dia akan kasih jawaban seadanya seperti makan vitamin, tidur yang cukup, tapi saya yakin it will not solve your problem. Paling kamu bilang juga, kalo cuman minum vitamin ya saya juga tahu.
Kamu harus ketemu itu dokter, dicek dulu. Lelah bisa karena jantung, ginjal, pola makan, dsb. Setelah dianalisa dengan tepat, baru bisa diberikan jawaban yang pasti (walaupun tetap saja ada kemungkinan obatnya tidak manjur).
Maaf kalo saya tidak bisa membantu, tapi pertanyaannya memang di luar kemampuan saya.
Terima kasih.
dayrscJune 2, 2014 20:10
Oke, bro.
Terima kasih atas waktunya dan maaf kalo ada salah kata
Auw JimmyJune 2, 2014 21:05
Sama2 Bro, maaf tidak bisa bantu banyak. Saran saya, coba bawa ke toko elektronik. Mungkin minta dicek secara elektronik untuk pastikan tidak ada yang rusak/salah.
Terima kasih.
willyJuly 19, 2014 11:46
Bro Jimmy
mau tanya,jika controller untuk mx5021 hilang.cara akalin supaya bisa nyala bagaimana ya?ada ide?thanks
Auw JimmyJuly 19, 2014 23:09
Hi Bro,
Sepertinya tidak ada cara lain, selain mencari kanibalannya.
Terima kasih.
AnonymousAugust 12, 2014 15:43
Hi,
My Altec Lansing MX5021 suddenly stopped working.
It is totally dead whenever i connected to MP3 or Computer but the LED lights on the controller are still working (i can even adjust them!.Everything looks like normal but just NO sound!
Is there any fuse or capacitor is fried may cause this faulty? How can I trace it and change the faulty component? Any idea or help on this will be much appreciated!
Any help or advice is greatly appreciated.
Thank you.
Auw JimmyAugust 13, 2014 14:27
Hi,
It could be some chips to control the system. Need to dis-assembly and check the amplifier. Definitely not an easy job…
Thanks.
ComanSeptember 9, 2014 03:52
Hello
Somehow I have managed to entirely smash, beyond repair both my satellites for MX5021. I kindly ask for help, where to buy a spare set of two, even used ones but functional.
Thank you
Auw JimmySeptember 9, 2014 13:45
Hi Coman,
Maybe you can try your luck at eBay?
Thanks.
ComanSeptember 9, 2014 21:38
Hi Jimmy
Thank you for your prompt answer. Already tried eBay. Found a pair sold but the bid was closed. There is also another problem, not many people being happy to sell their items to Romanians. Seems that Amazon is also an unlucky place for me. I am already getting tired of punching the same letters ”used MX5021 satellites”. It seems the system is built to last forever…
If you know someone or you find a link pls give me a sign in this forum.
Thnx
Daniel von CalabreseMarch 26, 2016 00:52
Hi, what type of caps are best or at least capable for audio circuits? Can you write me some brands? And one more thing…what about the cables…what kind they must be? More thicker or…?
Thanks.
CebeApril 26, 2016 06:01
Hi Jimmy
Have you kept mounting 3-way, for me two woofer series are mounting for 2-way (4,7uF;560uH;85uF)
I think change the arrangement for mounting the 3-way with the same band.. the problem is to find an inductor to the other woofer ..?
Is it a good idea?
thanks.
Auw JimmyMay 1, 2016 00:14
Hi Cebe,
Yes, not easy to find good inductor at that size…
Thanks.
rafaelAugust 23, 2016 00:56
Hi Mr Jimmy, Good job, i m writting so i need de schematic driagram of mx 5021 this no working and id like fix it. thanks a lot
Auw JimmySeptember 10, 2016 20:39
Hi Rafael,
Unfortunately I dont have it my friend.
Thanks.
JaccoWNovember 2, 2016 21:30
Mine (European 220V version) seems to have a lot less capacitors inside.
See pic here: http://i.imgur.com/f16Ra82.jpg
Does this matter or does it simply mean more room to place replacement amps?
Auw JimmyNovember 24, 2016 21:56
Hi Jaccow,
It could be that they have changed the drivers, therefore the crossover also got adjusted.
Thanks.
FerryDecember 9, 2016 22:50
Hi Bung Jimmy
Untuk xo karakter cap solen dibanding bennic fpp/ xpp gimana?
Auw JimmyMarch 8, 2017 15:49
Solen lebih mellow menurut saya, Bennic lebih open.
Tergantung selera juga.
Thanks.