Last week, we held a DIY gathering. Located at Bintaro, Indonesia. The host was Mr. Didik F. Wiryawan and family. Around 30+ people were there, was one of the crowded gathering ever. Below is the picture of the stage. We held some Blind Test also. You will also see some fancy DIY creation here.
The famous Aikido PreAmp. The PCB was designed by John Broskie.
NAD C542 CD Player modded with Black Gate and Solen capacitor. The final opamp out was changed to LM4562 metal-can version.
Zero Gain Power Amplifier amplified by a pairs of 6922 in SRPP mode (thanks to Mr. Didik – the host – for the correction)
MOSFET Amplifier, MP50Di. The fan at the back used to cool down this Amplifier.
Another Aikido, powered by Russia Teflon Capacitors in the power supply section.
LM4562 metal-can powered PreAmp, with AudioNote aluminum Capacitor.
Another LM4562 powered with Auricap as power supply bypass Capacitor and Jensen Copper Foil in signal section. The main power supply is powered with Siemens Sikorel Capacitor.
Simple but expensive. We can see AudioNote, Kiwame, and Takman Resistors there (thanks Mr. Aphinx for the correction).
Another LM4562 PreAmp. This time powered by Black Gate Capacitor, Takman Resistor, vintage Siemens Capacitor, and (I think) some Russian Capacitors.
Another Aikido in a complete set. Nice chassis!
Some DIY and some branded Push Pull Tube Amplifier also joined this session.
Crescendo Amplifier in a heavy weight chassis! Lift them up guys!!!
B1 PreAmp. The 3rd champion of the Blind Test.
LM4562 with regulator. We can see some Russian “green” capacitors there.
A cigarette box?
Nooo… It’s a discrete PreAmp, powered by 3x 9V battery.
Another LM4562 PreAmp (gosh, how much I should repeat the same sentences?). But this one is powered with a tons of Black Gate and Elna Starget Capacitors. We can see Jantzen and Auricap also there.
I would call this one as “garbage” PowerAmp, as if you throw all of your shelves collection inside. Ha~~~ (thanks to Mr. Ado for the correction)
Some speakers also auditioned here… One of them was quite funny. Made from tall plastic water pipe. The sound was amazing though.
The detail look of the unique speakers. No one ever think this small speaker could sound that good!
A classis Mini Crescendo. Fully upgraded, please!
A closer look of the Mini Crescendo.