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Old 9th April 2011, 09:22 AM   #1
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Default Looking for goodme proven 2A3 SE project

Hi to All
As in the title I am looking for well designed 2A3 SE project , 8-10W under 8ohm load , so far I found Andrea Ciuffoli's PSE amp ( I wonder if anyone built that one ?).
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Old 9th April 2011, 03:46 PM   #2
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Quote:
Originally Posted by slav View Post
8-10W under 8ohm load
You want 300B for such output, not 2A3.
TubelabSE Manual
JE Labs 300B SE Amp
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Old 9th April 2011, 06:21 PM   #3
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Furthering what Evenharmonics mentioned above, if you are married to the 2A3, the 2A3 will also pop right into the TubelabSE but you will end up with something less than 8W (around 3-4W). You need different B+ voltage, Filament voltage, and maybe a different output transformer primary impedance.

Tubes and Transformers
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Old 9th April 2011, 08:00 PM   #4
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I was thinkig about parallel SE , which gives something about 8W ,but it's quite expensive (four matched2A3 woul cost a fortune) , so 3000B SE it is .Which design would be the best and what suitable speakers to match it?Curently I'm using ProAc Tablette 2000 (87-88dB) wit El34 PP , listening to all kind of music from jazz to The Cure , Depeche Mode ,Prince ,classical etc
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Old 9th April 2011, 08:14 PM   #5
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Quote:
Originally Posted by slav View Post
I was thinkig about parallel SE , which gives something about 8W ,but it's quite expensive (four matched2A3 woul cost a fortune) , so 3000B SE it is .Which design would be the best and what suitable speakers to match it?Curently I'm using ProAc Tablette 2000 (87-88dB) wit El34 PP , listening to all kind of music from jazz to The Cure , Depeche Mode ,Prince ,classical etc
With this kind of speaker sensitivity (which also implies a complex crossover) , the best design would be a El34 PP
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Old 9th April 2011, 08:23 PM   #6
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As I said I will be looking for new speakers
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Old 9th April 2011, 09:09 PM   #7
euro21 is offline euro21  Hungary
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Default 300B SE, Powerdrive

D3a (cascode CCS anode load) with Powerdrive source follower, 300B SE (380-400V, 70mA)
6W A1 mode, up to 10-11W A2 mode.
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Old 9th April 2011, 11:27 PM   #8
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Quote:
Originally Posted by slav View Post
As I said I will be looking for new speakers
These speakers are made for low power SET amps.
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Old 9th April 2011, 11:32 PM   #9
tinitus is offline tinitus  Europe
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any SE amps with 3x 6V6 in paralel ?
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Old 9th April 2011, 11:35 PM   #10
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Hi
What about 300B in parallel , it should give reasonable power to source any speakers ?
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