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Old 16th May 2012, 08:50 PM   #621
sonnya is offline sonnya  Denmark
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I believed on the circuit of this tssa so i actually have 10 panels of 4 boards.
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Old 16th May 2012, 09:00 PM   #622
sonnya is offline sonnya  Denmark
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All the ones that has send there wishes for transistors should mail there address to audioparts@sitosite.dk

Then i Will send a proforma invoice so that you Can see what should be paid through paypal.
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Old 17th May 2012, 06:54 AM   #623
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Originally Posted by sonnya View Post
I believed on the circuit of this tssa so i actually have 10 panels of 4 boards.
Hi Sonnya

That's what I call full confidence to a TSSA 1.5v Basic design. Congratulations for a very professional PCB design, I think also some other forum members would like to have one of these too. Development of testing and future events will be even more interesting, hardly wait to see.

Regards Andrej
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Old 17th May 2012, 08:20 AM   #624
sonnya is offline sonnya  Denmark
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The sims shows around 16W in 8R at 1KHz the THD would be something like 0.06% and at 10KHz it is around 0.068%

It is not bad.
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Old 17th May 2012, 09:40 AM   #625
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The sims shows around 16W in 8R at 1KHz the THD would be something like 0.06% and at 10KHz it is around 0.068%

It is not bad.
Not bad, not bad at all, since this is two stages amp design only, although each stage is very well adapted for its mission and still will be more improved-adjusted at process of initial calibration in seeking for best final performance.
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Old 17th May 2012, 09:50 AM   #626
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OK, when i find the time i will make the moduls working. Problem is that i have a lot of guests after the High End so the next two weeks it may be hard to find time for DIY. Anyway, this is exiting.
I wonder what's the progress in making of your amp. Any activity going on? Did guests already left the party hehe
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Old 17th May 2012, 07:33 PM   #627
sonnya is offline sonnya  Denmark
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KSC and KSA buy.

zsaudio: 100+100
vgeorge: 50+50
Rudi_Ratlos: 25+25
BenY: 100+100
presbel: 50+50
nutrin0: 50+50
Rellum: 50+50
Bussforb: 25+25
CaféNoir: 25+25
Fredlock: 50+50

The ones above i am missing an email from
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Old 17th May 2012, 07:56 PM   #628
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LC, i missed you at the High End. I did not find the time to test the modules again and i do not even know if i ever will because MiiB and I have changed the circuit again. Our version simulates also with 0,06% THD. That is of cause no world record but it is only 2nd harmonic, driver or not. 3rd is down 1/1000 times so i expect a good sound. I have still my first version playing and even that super simple execution sounds excellent.
I am using a cap multiplier in the PSU. It is dead quiet and makes no on or off plop.
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Old 17th May 2012, 09:09 PM   #629
sonnya is offline sonnya  Denmark
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As soon as you go from Class A over in Class B (One of the output devices turning off) third harmonic will start rising.

And sim is forgiving.

No matter how clever you try to make this switch, the cross over region will allways be the Achilles heel. Even with a soft switch off the harmonics starts to rise abrupt.

But at 1Watt you will with the present state be at 0.007% ...
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Old 17th May 2012, 09:11 PM   #630
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Sure, this works best in class A and it is monotonic.
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