There are not many options to go with NOS DAC. One is TDA 1541, and the other is AD1865. Some says, the TDA is better (at least the S1), meanwhile...... Read More
My new digital transport has just come, QLS QA-550. This is actually a SD Card WAV Transport, as it only has digital out (either Coaxial or Optical) and internally I2S...... Read More
I dig some of my collection and find some AZ1 tubes. Basically, I have several tubes, but short word, they are separated into 3 brands, Philips Miniwatt AZ1, Valvo AZ1,...... Read More
I would rather call this as “beauty in the dark”… No longer perfect in terms of construction, slightly off-center for the mesh and triangle, since probably over 70 years old...... Read More
When I clean up some of my collections today, I accidentally find some tubes which I rarely (or probably never) use. Actually I have some bad habits, collecting “junks”. Not...... Read More
This album is one of the my precious collectible album. Not just because this CD is quite rare (the original one, not remastered with XRCD bla-bla-bla), but this CD also...... Read More
Indonesia High End Audio Club or in short, IHEAC, held an blind test (or maybe I would prefer to call them as blind scoring) for tube pre-amp. The session was ...... Read More
We’ll see between those two, who can serve the best supply for the DAC.... Read More
Coming soon… 😉 Thinking about independent shunt regulator for each rail, precision passive I/V, and tube output.... Read More
A relay in your audio path? Can’t imagine that before, although the practice is quite common on commercial audio application. The function of the relay in your audio path is...... Read More
Today, I drill some acrylic and heatsink to mount the regulator PCB. What a tiring drilling job! Not too easy to drill a lot of holes on the heatsink, though...... Read More
When it comes to high current and high efficiency, actually we don’t have much option rather than using switching based power supply. For most of consumer electronic equipment, this kind...... Read More