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Old 23rd October 2011, 01:40 PM   #1181
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Andrej and Alex
That's an exceptional gift for the community thanks for the long hours invested designing and testing all of these SSA amps. I should also mention Nico and Miib for their excellent contribution.
Cheers to all of you,
Tony

Last edited by apassgear; 23rd October 2011 at 01:42 PM.
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Old 23rd October 2011, 04:03 PM   #1182
Wolfsin is offline Wolfsin  United States
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Wow, is that a work of art. To twist is human, to complement is devine. To susy is to walk atop mount Olympus!
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Old 23rd October 2011, 05:58 PM   #1183
a.wayne is offline a.wayne  United States
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Quote:
Originally Posted by Lazy Cat View Post
Hi guys

Finally, I am proud to announce that the SSA Low Impedance HP design project is prepared. It was a DIY community mutual project since there are ideas, knowledge, effort and of course time & energy of many involved, to offer free SSA amplifier project to all interested.

Happy DIY, enjoy, regards Andrej

P.S. Special thanks to Alex, you're the Man.
Thanks LC, Alex MM, a bit different from the original SSA V12, LC, why the inductor on the output..?

regards,
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Old 23rd October 2011, 07:27 PM   #1184
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Hi a.wayne

There were only minor non vital changes made, like capacitors from the rails to GND, LED's for fuses & +/-50V indication and an output inductor for HF output impedance matching. There is a direct output pin so you can omit the inductor if you don't like it, but for universal amp purposes it has to be included.

Last edited by Lazy Cat; 23rd October 2011 at 07:30 PM.
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Old 24th October 2011, 09:28 AM   #1185
gfle is offline gfle  Greece
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RESPECT to LC and Alex!

Many thanks,
George
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Old 25th October 2011, 04:18 AM   #1186
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Originally Posted by Lazy Cat View Post
...now I am in the phase to test high performance version and pics will follow. What I am after is an amp with no more than four outputs, capable of delivering some 100W and to have the best sound as possible (to mine subjective taste). I am not in a rush to make it immediately, now, that is even better since I love fiddling around the electronics stuff. The goal is always important but the road getting there is offering much more fun. ...
Andrej, did I miss this high performance 4 output version? I tried browsing the thread but can't find it.
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Old 25th October 2011, 08:02 AM   #1187
ersa191 is offline ersa191  Equatorial Guinea
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Question why does the front end operate on 60V and output stage 50V
And can the front end be on 50V? on Low impedance V1.2 schematic Simple Symetrical Amplifier?
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Old 25th October 2011, 02:04 PM   #1188
Bigun is offline Bigun  Canada
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There are voltage drops in the amplifier that prevents the front end from being able to drive the output to the full capability of the main power rails. By increasing the front end voltage this problem is solved. And it forces you to have a separate clean supply for the front end which improves performance.
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Old 25th October 2011, 02:20 PM   #1189
ersa191 is offline ersa191  Equatorial Guinea
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Originally Posted by Bigun View Post
There are voltage drops in the amplifier that prevents the front end from being able to drive the output to the full capability of the main power rails. By increasing the front end voltage this problem is solved. And it forces you to have a separate clean supply for the front end which improves performance.
Thanks
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Old 26th October 2011, 10:51 PM   #1190
Salas is offline Salas  Greece
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Exploring the 31dB beast. Drifty cheeky rascal! LOL.
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