200W MOSFET CFA amp

[dadod]

Great work guys, certainly bringing's DIY to another level.
The mechanical design is usually a stumbling block for most DIY.

2oz Cu plate on the OPS pwb's?
Happy soldering, good luck on power up test

Cheers

2oz Cu on 200W CFA and PS regulator boards. There are screening masks on high current lines where is possible to solder additional current reinforcements (wire).

 

[dadod]

One channel 200W balanced inputs + PS regulator

One channel 200W balanced inputs + PS regulator. Example how is possible to mount the bords on the heatsink.

 

[mlloyd1]

Looks good Richard!

Magnat did a great job.

Still waiting on some good interior shots!

mlloyd1

Here is my DIY packaging of your great SOTA power amplifier design. We had trouble finding blue LED source with consistent and even light output. Think they nailed it now.

Two, two-channel amps are needed for Bi-Amp'ed JBL M2 system.


View attachment 746363



Chassis is all CNC milled parts.... top, bottom, front, back.



THx-RNMarsh

 

[malibutwins]

Anyone have any build update?

 

[dadod]

Anyone have any build update?

I'm interested too, if any progres with the amp?

 

[Tesla Audio]

CFA amp progress

I've just finished one side with 3 amps for my active system. Still missing analog VU-meter. So far sound is fantastic.

 

[Nico Ras]

Lovely!

 

[dadod]

This is 200W amp on its way to the finish state. The photos show the bias setting. I used temporary power cabling to have one by one channel out of the box during bias setting and later fix it to the box sides.
Damir

PS. Mario that looks beautiful.

 

[Tesla Audio]

Damir, I adjusted bias on the same way, out of the box with longer power supply cables.
Mario

 

[dadod]

One channel's playing. The heath sink temperature showed after one hour playing at quite high power.

 

[Bonsai]

One channel 200W balanced inputs + PS regulator. Example how is possible to mount the bords on the heatsink.

Absolutely superb looking boards dadod! Fantastic job.

 

[dadod]

Absolutely superb looking boards dadod! Fantastic job.

Thank you Bonsai.
My goal was possibility to remove the whole board together with output transistors from the heat sink but still with some heath sinking and test it without it and change some components if needed.
Your boards are professional art, my are just amateur effort.

 

[Bonsai]

 

[dadod]

200W CFA -, now VFA, plays

Today I connected 200W amp via balanced inputs to the Benchmark DAC2 and played flac files from my laptop PC.
All is working flawlessly and I am very satisfied with the sound, now expecting results from others who bought the boards.
Damir

 

[Krisfr]

Very Nice



How is the singing?

 

[dadod]

Very Nice



How is the singing?

Oh, I am excited.

 

[dadod]

200W mosfet amp finished.

 

[rsavas]

Wonderful, damn you are good at packaging, your mechanical designs are in line with your electronics.

Cheers
Rick

 

[dadod]

Wonderful, damn you are good at packaging, your mechanical designs are in line with your electronics.

Cheers
Rick

Thank you Rick for your nice words.
BR Damir

 

[bimo]

Today I connected 200W amp via balanced inputs to the Benchmark DAC2 and played flac files from my laptop PC.
All is working flawlessly and I am very satisfied with the sound, now expecting results from others who bought the boards.
Damir

It should be very good.
My version of CFA using OITPC, although it used very cheap components, but it reproduce the best attack time of music instruments of all amplifiers that I ever heard.