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Head-Fi.org › Galleries › alota's Photos › MY AMB BETA-22 S.V.
Uploaded by alota
  • 22 photos
  • Total views: 5,541
  • Last upload: Mar 26, 2013

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What are the heatsinks on the outside of the case for?
  • Aug 6, 2012 by milosz in MY AMB BETA-22 S.V.

MY AMB BETA-22 S.V.

A new version of my balanced Beta-22 with alps rk-50; a new power section with 2 160VA 2X30V Nuvotem-Talema toroidal transformers and 4 Hammond chokes; wired with 21.5 AWG up-occ 7N copper . Of course the rest of components is only first choice like vishay-dale resistors or nichicon muse capacitors.Gain is 5X for each board. Built by Atelier Audio, Lisbon, Portugal, E.U.
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Mar 26, 2013

Comments (22)

There are no comments yet
rosgr63 5/29/12 at 9:40am
Beautiful, very nice professional work, well done!
alota 5/29/12 at 11:47pm
thank you dear friend!
rosgr63 5/30/12 at 5:35am
Aldo è cattivo ragazzo
Now I must not buy tubes and save money!
alota 6/2/12 at 5:54am
good choice
preproman 9/25/12 at 9:32am
Looks really good. Can you provide a picture of the finished product?
rosgr63 9/25/12 at 9:53am
I can't wait to see this beauty!
preproman 2/6/13 at 8:27am
The finished product looks really good Aldo. I sure would like to take a listen to it. Let me know how the HE-6 does with it.
Congrats man.. It was a long road.
realmassy 2/6/13 at 8:58am
Nice! But 24 kg??? Are you sure it's still an headphone amp??
axellone 2/6/13 at 9:06am
Alleluja!!!! ;o)
rosgr63 2/6/13 at 9:08am
Congratulations!
Very, very nice.
How does it sound?
I like the Cabo Verde style!
Happy Listening
alota 2/6/13 at 11:58am
thank to all friends. it´s a miracle.
realmassy: if you want is a speaker amp
rosgr63 3/26/13 at 10:43am
Fantastic Aldo!
Congratulations my friend!
Can I become your slave for one month so I can listen to it?
I'll be very good, I promise, not a Diavolo Tentatore!
alota 3/26/13 at 2:13pm
you don´t need. you´re the master :-)
rosgr63 3/26/13 at 9:34pm
You must post your impressions, we are waiting!
alota 3/27/13 at 7:24am
of course!
rosgr63 3/27/13 at 8:28am
Mi piace il colore nero!!!!!!!
alota 3/29/13 at 11:11am
depravato!!!
rosgr63 3/29/13 at 11:22am
Ragazzo Cattivo!
alota 3/30/13 at 3:22am
SICURAMENTE!!!!
e19650826 4/23/13 at 8:58pm
You aren't really utilizing the external heatsinks. Maybe you can rearrange things a little to mount the output MOSFETs directly onto the sinks (as oppose to use the tiny sinks on-board,) then you can turn up the idling current by quite a bit. Probably not necessary, since B22 in default setting is already deeply biased into Class-A, but it just doesn't feel right to see those beautiful sinks not used.
Anyway, nice build!
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