TSSA - The Simplest Symmetrical Amplifier - Page 74 - diyAudio
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Old 29th May 2012, 08:19 AM   #731
mikelm is offline mikelm  England
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Quote:
Originally Posted by AKSA View Post
Do you really want to do that, Joachim?

There is the psychoacoustic masking effect of a small H2 component.....

Hugh
Yeah, for most systems cancelling 2nd HD may not be the prime motivation for going balanced but I suspect there may be other sonic advantages connected with earthing & noise levels.

. . . and some people think dominant H3 sounds best
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Old 29th May 2012, 08:23 AM   #732
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Quote:
Originally Posted by sonnya View Post
Yes i do.

The boards are 75mu copper, and NiAu plated.

The boards without SMT Will cost 21 each.
With SMT They Will cost 39 each.
With All parts They Will cost 103 each and it is without heatsink.

I Can also deliver Them assembled and testet on a heatsink.

This is for the TSSA board only.

The psu board needs to be calculated.

It May Sound expensive but there is No cheap parts in this one. Only good quality parts.
Hi Sonnia ,

I received yesterday transistors, thanks

I want to buy 2 PCB + all parts.

Best regards
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Old 29th May 2012, 08:38 AM   #733
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Good idea to go balanced from DA to speakers.
I use mostly vinyl though. I design phono stages professionally and for DIY, so this is unavoidable.
One benefit of a balanced amp i was told is that pollution from the PSU into ground does not reach the speakers. My TSSA prototype is dead silent though, it does not even have on ON-Off thump.
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Old 29th May 2012, 08:53 AM   #734
sonnya is offline sonnya  Denmark
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It is silent.... Not a his!
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Old 29th May 2012, 08:55 AM   #735
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Yes, it is scary how silent this is.
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Old 29th May 2012, 08:58 PM   #736
zsaudio is offline zsaudio  Europe
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I've received the trannies. Great service.

Thank you Sonny.

zsaudio
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Old 29th May 2012, 09:22 PM   #737
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Great silence is normally attributed to an exceptional design of power supply and many star supply as well as ground points. Clean power is the only formula for a dead silent amp. That is why you cannot beat a primary cell (Battery).
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Old 30th May 2012, 07:30 AM   #738
sonnya is offline sonnya  Denmark
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Hi all.

They have been working for 4 days with no issues at all.

Beautiful soundstage.
No noise at all.
No pop on noise.

Some asked for the price on an assembled unit. It is a bit more expensive as they need a larger heatsink.

The price is 253/channel or just go to.

SITO Audio - diyAudio

It is visible to the public yet. Jason needs to make it visible.....
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Old 30th May 2012, 10:42 AM   #739
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Hi guys

Superb activity going on in TSSA thread, very nice.

Sonny very professional TSSA modules you offered, from plain PCB to assembled module I like it, maybe I'll ordered the second option - PCB with SMT parts assembled.

Will you test TSSA also with the driver mosfets? I think it will be to some extent better than without them.

BTW I finally designed all three CSA boards including real panel PCB which will save me from a lot of seaprate wires at assembly phase, only 20 pin flat cable speedy connector to CSA soft start PCB and voila here we gooo.
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Old 30th May 2012, 11:44 AM   #740
sonnya is offline sonnya  Denmark
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I Think They Will arrive tomorrow. And then i will test with them installed.

- Sonny
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