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In Reply to: RE: Power Amplifier: Quality of watts vs. Quantity of watts posted by bssk on June 28, 2012 at 14:41:29
The sound is night and day different from SS or PP tube amps. Your speakers, as you say, are pretty insensitive, but easy to drive. If they sounded good with the 845 amp (Class A), you won't get very close to that sound with SS. About the closest you could come to the 845 sound with a tube amp (25W+) is a PP-triode amp (triode-wired power pentode), but probably class A/B instead of all Class, as Class A PP triodes are usually down around 10-12W.
Why not get an 845 amp?
Observe, don't think
Follow Ups:
Do you have any suggestions in the #3-4K range?
Look at Triode, a Japanese company. Otherwise, not in an 845. Don Garber's 2A3 and 300B amps are in the 4-5K range, now, I think. I have his 2A3 monos, but you could not drive your speakers very well with so little power.
Observe, don't think
There were the old Melos amps. The monoblocks put out over 400 watts triode, push/pull of course, with about 25 watts before switching to class A. The stereo amps did about 1/2 that. And they also had a fairly high damping factor around 20 so they were quite tolerant of speakers with wildly varying impedance frequency wise.
I'm not familiar with that amp, but it must have had more than 4 power pentodes per channel. The most 2 x KT-88/6550/per channel will get in Class A is about 12W. A 300B PP with 2 tubes per channel may get you a bit more in Class A. Finding a class A PP triode commercially is virtually a non-starter in this, the high-power age!
Observe, don't think
nt
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