Perfectly built and working using very well matched Toshiba 2SC5171 & 2SA1930 and On semi MPSWs. Fully loaded with Vishay Dale audio grade resistors and Nichicon capacitors, the two Golden reference supplies also have matched transistors and LEDs for perfect 29V output.
Here is a reference grade Dynahi and a rare opportunity to build one of the finest Headphone amps in the world, This will drive any headphone ever made.
A lot of love and care went into building these boards, you will not find a better example of this amplifier. These were built to test the PCB and matched transistor kits that I had for sale, They have been tested and stored carefully so are brand new and fresh. I really wanted to keep and build this up but It's too big for my needs, I have a superb Dynalo anyway and quite a few projects to finish first.
It is recommended to swap the THAT340 BJT input for Jfets from Toshiba, you need two matched quads of 2SK170 & 2SJ74.
There have two matched quads mounted to adapter boards available £80 GBP, please ask if you need them.
SOLD
Here is a reference grade Dynahi and a rare opportunity to build one of the finest Headphone amps in the world, This will drive any headphone ever made.
A lot of love and care went into building these boards, you will not find a better example of this amplifier. These were built to test the PCB and matched transistor kits that I had for sale, They have been tested and stored carefully so are brand new and fresh. I really wanted to keep and build this up but It's too big for my needs, I have a superb Dynalo anyway and quite a few projects to finish first.
It is recommended to swap the THAT340 BJT input for Jfets from Toshiba, you need two matched quads of 2SK170 & 2SJ74.
There have two matched quads mounted to adapter boards available £80 GBP, please ask if you need them.
SOLD
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The gerbers are available on head-case.org so you could have your own made. The 2 PSU boards are golden reference PSUs, also available there. Kevin (Gilmore) boards seem to appear on ebay and aliexpress occasionally also. The ones I'm seeing on ali currently are some bastardized version and wouldn't be recommended.
