Pictures of your diy Pass amplifier

Scott

Smile, yes! In my kitchen. It's a nearfield setup for my mostly used sitting place. In the living room I use Quad ESL57 speakers driven by an B1 and an F5, supported by a low pass filter and another t-amp driven sub. I consider to work on this setup in the next time, but possibly after the motorbike season...

Have a good time
Franz
 
F5.jpg

Finished my F5 and TVC. Nelson, the sound is incredible. I had no idea it could be this good. Thank you.
 
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Hey there all you lovely high fidelity freak sons of bitch*es 🙂👍

See attached picture. A daaaark picture. The Twin Aleph Js, left and right, glows simply awesomely god da*mn lovely dimly blue and red in the dark.

And sounds! massively better😘

Explaining the picture😇 Center channel in the middle, TV above. (I recommend Philips OLED Ambilight) Just A friendly advise. 🙂


Well. You know it: You simply will have to crank it up!! The old beautiful classic, with a extraordinary, juicy, strong and massive bass with a simply beautiful sub bass grunt. Enjoy!❤️

 

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I just built the right channel of MoFo. The left one will be identical, except that the heatsink will be on the other side.
You may notice that the orientation of the heatsink is "wrong" (horizontal fins). That was done deliberately, in order to fit them under the TV stand. Will add slow-moving fans...
I did not build the preamp yet, but even attached directly to DAC, it sounds nice...
As always, thanks Nelson! :)
 

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HI, just finished an F5 Turbo V2 dual mono in a 5U chassis. Absolutely fantiastic amplifier with my speakers. Perfect bass, with real tension in the drums. Detailed midrange, more than I've heard befoe and holding the highs without screeching. Did not really ejoy my old F5 as much peferred the F6 and M2X but this is avery different beast with a real sense of authority.
The front panel was drilled and filled with hot glue for the LEDs then covered with peral resin to obscure the lights when off and diffuse them when on. They are fully red, the white centres is a camera atiffact.
 

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Finally ... my "Preamp", it started as a B1-buffer with Pearl Phono about 13 years ago, inputs then were switched by a 2x8 ELMA Type 04. Vinyl did´t play loud (enough), but Pearl2 solved this problem. Saved me from building a new housing to accomodate the already finished pumpkin&shunty, which have got to be somewhere still .... maybe sometime i will hook an F4 to them.

Next came the Salas DCB1 and modifying my A75 to have DC-coupling, amongst other small changes (housing, heatsinks, PCBs, LC-Filter, ... )

Then I got a new CD-player with a remote that had buttons for volume, inputs, mute etc so i used an old Siemens-PLC S7-224 for decoding the RC5/RC6-commands from the remote output of the SA15S2 (orange cinch top left) to control Panasonic DS2 bistable input- and muting-relays and a motor-drive with torque coupling for the RK271 volume pot. The front-leds are switched on/off in synch with the CD-Players illumination, this turned out to be rather nice when listening in the dark. The PLC also monitors mains voltage half-waves and mutes the A75-inputs in case of mains problems, as well as providing turn-on delay.

I thought about repositioning the DCB1 to get rid of the cables, but .... what the heck. Putting absorbers/diffusors in my listening room should be way more efficient ...
 

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I just built the right channel of MoFo. The left one will be identical, except that the heatsink will be on the other side.
You may notice that the orientation of the heatsink is "wrong" (horizontal fins). That was done deliberately, in order to fit them under the TV stand. Will add slow-moving fans...
I did not build the preamp yet, but even attached directly to DAC, it sounds nice...
As always, thanks Nelson! :)
Yes as always thanks to Nelson Pass but MoFo is DIY project design by Michael Rothacher :wave:Best regards
 
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