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YBM 3 channel b22 + sigma 22 power amp / pre amp / headamp - In Australia.

post #1 of 17
Thread Starter 

I bought this a couple years ago from YBM Audio. I've added more inputs (total of 6) and a couple 3.5m outputs.

 

It's currently wired for 240V input but can be easily rewired for 110V.

 

 

Specs:

 

1. Works as a single-end headphone amplifier, plus it will function as a preamplifier with six inputs (RCA), or a pure class-A integrated amplifier which will drive efficient speakers.


2. Source input is facilitated by a Swiss-made Elma switch via an extended shaft -- this arrangement minimizes the signal path.


3. Volume attenuation is attained by a highly regarded ALPS Black Beauty. The Black Beauty has been out of production for a long time and this one is even more special -- it is detented. Making it feel like a stepped attenuator.


3. All RCAs are high quality chassis-mount Cardas CTFAs.


4. Four headphone outs jacks -- 2 x Swiss-made Neutrik 1/4" silver-plated with Nickel plated metal housing plus 2 x 3.5mm outputs.


5. The black anodized front panel is a custom CNC'd, engraved 3/16" thick aluminum panel with a new label covering it, engraved to show the 6 input positions. It's gloss black with silver lettering and yellow b22.


6. The Beta22 amp, along w/ the optional ε22 ("epsilon 22") backplane board, and the Sigma 22 power supply are housed in a clear anodize alumimum chassis which measures 16 x 12 x 5" (W x D x H).


7. The oversized 100VA toroidal transformer is housed separated in another clear finish aluminum chassis. The front panel for this chassis is a custom made mirror-shine 1/4" thick black Acrylic.


8. Internal parts for the Beta 22: Vishay-Dale 1% military spec metal film resistors, boutique Elna Silmic II electrolytic capacitors & Wima metal film capacitors, silver-plated Teflon coated hookup wires, stainless steel screws, 2" heatsinks to allow high class-A biasing. It's biased to 105mV. 


9. Internal parts for the Sigma 22: Vishay-Dale 1% military spec metal film resistors, boutique Elna Cerafine electrolytic capacitors, Panasonic TS-HA filter capacitors, Wima metal film capacitors, silver-plated Teflon coated hookup wires, stainless steel screws, 2" heatsinks to realize the limit-less current design.


10. AC input is the heavy-duty Delta IEC inlet with built-in switch, fuse chamber and noise filter.


11. The AC connection between the transformer and amp chassis are terminated with the very rugged, environment sealed Amphenol Tuchel connectors and plugs w/ silver contacts. The cable is the 14AWG Beldin.

 

12. The front panel LED is a soft blue, the internal LEDs are a warm orange, like tubes.

 

Pics:

 

 

IMG_1919.jpg

 

 

IMG_1921.jpg

 

 

 

IMG_1928.jpg

 

 

 

 

 

 

 

IMG_1922.jpg

 

IMG_1929.jpg

 

 

 

IMG_1924.jpg

 

 

 

IMG_1925.jpg

 

 

The power and the sound is as you would expect, world class. I haven't heard a beter head amp my self, it's better than the Rudistor I used to own.

 

It's a very versatile piece and can serve as a pre amp, or power amp to loudspeakers (it's surprisingly powerful).

 

Asking $1500 AUD shiped in Australia or $1500 USD shipped worldwide with tracking and insurance.

 

Feel free to make an offer though.

 

Please don't PM, send me an email to stevenkelby@hotmail.com

 

post #2 of 17

Wow.  You don't see a B22 often here with those specs - amazing.  For 110V residents, would you change rewiring?

post #3 of 17

Must resist... suppose to be saving for stax amp.... must resist...

post #4 of 17
Thread Starter 
Quote:
Originally Posted by alphaphoenix View Post

Wow.  You don't see a B22 often here with those specs - amazing.  For 110V residents, would you change rewiring?


Thanks.

 

Yes, I can rewire no problem.

post #5 of 17

Steven,

 

Sent an email. Keen!

post #6 of 17
Quote:
Originally Posted by shawn_low View Post

Steven,

 

Sent an email. Keen!



I knew this would happen,one day or another.

post #7 of 17
Thread Starter 
Quote:
Originally Posted by shawn_low View Post

Steven,

 

Sent an email. Keen!


Replying now :)

post #8 of 17
Thread Starter 

All emails replied, thanks guys. Will update when sale is confirmed.

post #9 of 17
Quote:
Originally Posted by shawn_low View Post

Steven,

 

Sent an email. Keen!


Congrats man.

post #10 of 17
Thread Starter 

Sold pending funds. Thanks guys :)

post #11 of 17



 

Quote:
Originally Posted by shawn_low View Post

Steven,

 

Sent an email. Keen!



That is a strange looking DAC.

post #12 of 17

Damn! LoL

post #13 of 17
Quote:
Originally Posted by ford2 View Post



 



That is a strange looking DAC.

 

Haha. While my B22 is waiting to be repaired, I couldn't resist picking this one up.


Search for a DAC continues...
 

post #14 of 17
Quote:
Originally Posted by baka1969 View Post

Damn! LoL


Damn? Why?

post #15 of 17

Quote:
Originally Posted by shawn_low  


" Damn? Why?"


Damn that's sexi! Damn I missed out! :)

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