Here are some pictures of my Home Built Amplifier project. It took me 4 months to design the amplifier. Another two months for the print layouts and the preparation of the hardware. And finally 2 weeks to assemble the parts. After an extensive test period they where ready to sing for the first time.
The cutting of the silicone isolation pads.
I used a 10mm thick copper bar to speed up thermal feedback a bit.
Top view of the print layout.
The copper side of the power section pcb's has 1.5sqmm rods of copper wire welded over the tracks.
Top view of a 'complete' amplifier section.
These are 10000uF/50V Capacitors giving a total of 320000uF for each amplifier.
The device under operational test.
I tested the amplifier on a 1 Ohm load paralelled with a 12uF capacitor
The amplifier was able to sustain a 10kHz square wave with an amplitude of 25V peak into this load. For more than a week.
The backplate of the amplifier showing the input section.
The comlete overview of all the amplifier sections.
It's a fully balanced design so it's a lot of hardware.
The welded steel case with the transformers.
The transformers are mounted in such a way that the stray magnetic fields are cancelled out.
Putting it al together.
The final result...
It's a pity I'm not able to convey the sound of this system across the internet.