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SET Asylum Single Ended Triodes (SETs), the ultimate tube lovers dream. |
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SET Asylum Single Ended Triodes (SETs), the ultimate tube lovers dream. |
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In Reply to: Why not design an amp... posted by morricab on March 5, 2014 at 00:52:33:
Regarding the general issue discussed in the thread - 300B tubes offer being "un-inspiring", to say the least:
I actually think that the offer of 300B tubes is large enough, and good enough. I guess at least 10 more or less differing types can be found on the market, and both sonic performance and prices vary. So far so good, if you ask me.
What could be seen as "un-inspiring" is the "offer" of 300B amps, the majority lookalikes, with the same (similar) cascoded 6SN7 or other driver - nauseating, to say the least. As usual, the DIY section is much fresher, but the situation is similar to the commercial offering. A repetitio ad absurdum of the same slightly modified designs...
Regarding the JJ 40W dissipation 2A3, that is actually a 300B tube with 2.5V heater. Better? At least different, I hope. Better sounding? Well, the only obvious difference is the 2.5V heater, which will hum less if used on AC (I prefer AC on heaters to all types of DC - voltage or current regulated, SMPS, etc.) - but this will obviously depend on the speakers efficiency and the amplifier in which they are used.
Very few have amps that allow to use different tube types (not only rolling different tubes of the same type), like my RH-TTA. I can compare a very wide range of tubes at a given operating point in the same schematics and with the same power supply and output transformers - from 2A3 across 307A, 2E22... all the way to 300B and 6B4G. Not to mention the compatible indirectly heated tubes... That way, besides enjoyment and variation, one can get a very objective subjective insight in the intrinsic sound value of various tubes!
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Follow Ups
- RE: Why not design an amp... - Alex Kitic 04:38:43 08/31/14 (0)
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