Congrats. A lot of people dismiss high powered SET amps but I like them just as much as the flea powered SET's. I had the same reaction when I received my GM-70 amp (38W). Sit back and enjoy.
- 15 posts total
- 15 posts total
Hello Jefftsefu. Thx for resurrecting this tread; it gives me an opportunity to blab.
I kept and loved these amps thru a pair of Quad 989s, but I tired of the 989s' excessive treble energy (for me) and bought a less-sensitive mag-planar speaker. The 805s didn't have enough power to drive them, so I sold the 805s and bought a pair of ASL Hurricanes, improved them greatly, sold the mag-planars, built hi-sensitivity open-baffle line-arrays, retired the 'Canes, moved to low-power SETs, bought in August 2010 a pair of Audio Physic Avanti IIIs, continued to use the 12-Watt SETs, sold them this month, and bought a pair of (GASP!) Marantz sand amps. The latter are the M-22s, 75-into-4, Class-A-biased monoamps.
I also ordered a new pair of ASL Explorer 805 amps (the RR is up to $4750!!!!!!!!) which should be here in a month or 3, and I've also ordered a pair of Monarchy Audio SM70Pros. The latter are 40-into-4, Class-A, MOSFET-output stereo amps that have an excellent reputation for sounding much better than their low price and overall at least very good. (I'll vertically biamp the lower-MR driver and the MR/treble drivers, which is doable since I've outboarded the X-overs and rewired the drivers.)
After the SM70Ps get here and break-in, I'll determine which of these sandamps sound better (and return the SM70Ps if necessary) and also if I can live for years without vacuumtubes in my poweramps. If I decide I can't--that is, if the better of these sandamps don't create enough 'goosebump' moments of sonic bliss--and I've had them several times with the Avantis driven by the Marantzes, but more often when driven by the now-gone 12-Watt Music Reference SETs--I'll accept the 805s and see how they sound.
So maybe I will return to SET heaven, and maybe I won't, but whichever I choose, the new system has never sounded better, overall.
Jefftsefu, I hope you fall in love with the sounds of wonderful music that SETs can deliver.
Jeffreybehr, we exchanged messages a few years ago (Two Jeffreys question).
Apparently you still have that turnstile installed in the doorway of your
listening room! You certainly have gone through a variety of equipment. But
it sounds like you're having fun and that's good.
Now, regarding power needs. A year and a half ago I bought a pair of 97 dB
speakers, my first venture into HE systems. I was able to borrow a number of
amps from friends (no local dealers seem to be into HE systems) that ranged
from 3-4 watts up to 25, and a mix of SET and PP. In general, even with the
efficiency of my speakers, musical realism/satisfaction improved with each
increase in power output. There was one exception, a 6 watt PX-25 amp that
sounds like it has roughly triple the output. It also offers a musical
refinement most of the more powerful amps didn't produce.
My bottom line conclusion? Generally you can't rely on an efficiency/power
needs chart, so don't hesitate to try more powerful amps than such a chart
tells you. A 97 dB speaker will play at 103 dB with only 4 watts? Not
successfully if you listen in at least an average size room and to anything
other than chamber music or solo folk singers.