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-   -   Looking for a Bryston 4B ST clone (http://www.diyaudio.com/forums/solid-state/7329-looking-bryston-4b-st-clone.html)

Phil O.son 4th November 2002 07:29 PM

Looking for a Bryston 4B ST clone
 
I was thinking of doing a set of DIY amps to go with my speakers and was wondering what eveyone else is doing. I looked at the Aussieamps but the FET's seem exotic and aren't even listed on the Manufacurers web site, which makes me nervous.

What I am looking for is a monoblock differential input, (XLR), that will drive 250W@8/400W@4 though I could probably live with half of that. I'd want very low distortion as well.

My current Brystons list distortion of .007% or so which the Aussieamps seem to meet. Are there FET substitutions that are more mainstream? Has anyone added a differential input?

Any other ideas?

TIA,
Phil

Cobra2 4th November 2002 08:27 PM

250+W
 
Hello!

I'm building the Aussieamps N-channel...and have high hopes for it's sound-quality.

I will use 2 x Jensen JT-11P-1 trafos for XLR-input.

Hope I get time to finish them till this weekend...

Arne K
NORWAY

bawang 5th November 2002 02:08 AM

The Super Leach Amp seems to meet your criteria for power, giving 270W/8 ohms, if I remember correctly, but without a balanced input.

Ken L 5th November 2002 02:16 AM

I'm interested in this thread
 
because I see a pair of subwoofer mono-blocks in my future-

But as a practical matter, I suggest ignoring the published distortion specs by even a well respected manufacturer -

there are just too many variables, and we really are more interested in the sound than the numbers:D

Ken

Phil O.son 5th November 2002 05:44 AM

bawang,

I'll do a search on the Super Leach amp and check it out. I do have simulation capability so I may attempt to add my own differential input.

Ken L,

I agree the proof is in the listening and since my Brystons are the quietist amps I've ever not heard I just want to get performance comparable to them.

By the way, each Bryston comes with an individual test sheet for that serial number so I think that they may actually be meeting their specs! ;)

Thanks all, anyone else?

Phil

djk 6th November 2002 08:36 AM

I've heard the Leach and the Bryston side by side.

The Leach was much better.

Considering that they both use similar topology (cross-coupled dual differential inputs, fully complementary from input to output),
You would think they would sound more similar.

They don't.


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