Aleph5 Nelson Pass ( DIY italian style)

[DR Audio]

Sorry for my English.

I am pleased to present to the amplifier Nelson Pass Aleph 5 design style Italian.
Me and my brother posing with 3 night (sorry sleepy-faced) after 3 weeks of work (even waiting for the components).
Domenico (DR Audio)
Eugenio (Artmachine)

We pass to the inside of PCBs made ​​from 0, we can see from the photo 22000 16 uF capacitors for a total of 352000 uF toroidal transformer resin is completely without cover and with photos.



In this picture still under construction.

In this photo while playing




Altre foto



In this photo you can see all the cables you see the lid is open ... I think it's a pretty neat job, I thank my brother Eugene who is a fanatic fanatical order




Now the PCB-mounted sinks






Questo il retro con ingressi sbilanciati/bilanciati xlr uscita casse tradizionale e uscita speakon



With this I think I put it all with this mini photo story.

Thank you Mr. Nelson for giving us these emotions

[Zen Mod]

you don't need heatsinks for input differential mosfets ;
its better to put both of them on commom piece of Al tin - just to have temperature bridge .

output offset will be more stable

[DR Audio]

thanks for the advice

[Marra]

Originally Posted by Zen Mod

you don't need heatsinks for input differential mosfets ;
its better to put both of them on commom piece of Al tin - just to have temperature bridge .

output offset will be more stable

Good advice as ever Zen. I did exactly that with a small piece of copper and the dc offset settled down at a low level.

[ikoflexer]

Very nice! Are you happy with the sound?

[DR Audio]

I love his sound, I fell in love right away ... I come from the tube but the sound of the transistor is completely different, much more so. I would be honored if Mr. Nelson Pass comment on this 3D

[jacco vermeulen]

Ohh, ché grande braggiole.

Which case model is that, something Chinese ?

[artmachine]

hi..the case is italian....hi fi 2000 model: dissipante pesante 5u rack aluminium 18 kg

[jacco vermeulen]

They changed the heatsinks on the Pesante Dissipante models ?
=> http://www.modu.it/pesante_diss_10mm_laterale.jpg

[Zen Mod]

naah

you're either blind , or miss-informed

or both