Korg Nutube was introduced first time more than 2 years ago. But yeah, due to quite busy life, I was not really tempted to try this stuff until I got chance to see myself and decide to grab one of...

It has been a really long time since my last post. Just got chance to listen an SIT/V-FET amplifier powered with 2SJ27 and really blew my mind. I listen SIT/V-FET little brother, 2SK82 quite some time ago and wasn’t that impressed. I’m...

It’s been quite some time since last gathering at Bintaro (although I have to admit that I missed some of the gathering due to schedule conflict issue), so finally we have another round of gathering again few weeks ago. As...

CES 2016 seems like the returning of vintage audio gear. After several turntables, next is we will see tube headphone amplifier from Manley Labs. Okay, Manley Labs is not common audio brand which we can find in common electronic audio/video store. Manley...

Always interesting to play with a high quality build vintage equipment, especially this famous Japanese brand Accuphase. The ‘A’ suffix on E-210 model means it has phono preamp inside. Overall, this is a perfectly working amplifier. But it thinks it...

There is an interesting website which allows us to simulate the triode loadline, or in other words: Triode Loadline Calculator. The link is here. You can easily drag-and-drop the curver inside the chart to simulate the impact on other parameters....

When enough is never enough! I think that would be a proper statement for this new approach from Kharma. Welcome, the Kharma Exquisite P1000 amplifier. I have no plan to talk about its specification. You are free to visit Kharma’s...

This is indeed a nice F5T (F5 Turbo) PCB. Well designed one, good option and flexibility, and surely good quality fabrication. Time to shop for the parts? 😉...

After a session on Bintaro, I decided to purchase this Sony 2SK82 for SIT Amplifier project. Don’t know when I will (ever) build this amplifier, but surely it’s nice to have some key parts on hand first....

It’s a sunny Saturday. It has been agreed to have a measurement of some amplifier to check their power output. Located at Bintaro, I bring my Rigol Oscilloscope and Sanwa True RMS Multitester. Both should be enough to give rough...

Last week, we held a simple DIY Blind Test session. The contenders were all Class A amplifier (we can see F5, J2, Aleph, TUMOS, and some others…) This was a hot session. Not just because the contenders were very good...

I’m thinking to create a first gift for my newborn (ooopsss… he is not yet here, just about to). A small MP3 Player with tiny amplifier to drive a small speaker should be a nice idea. I will introduce him...