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Which B&K ST-140?

OK, I simply have to hear what I'm missing--especially up high--with my old tube gear. After lots of reading on this wonderful website, the B&K ST-140 seems a good quality-vs-cost choice to try.

But which ST-140? The 70w? 105w? only the blue and red one? I only care about which sounds best, especially at the high end.

Thank you!
river251
slipknot1
1,423 posts
 
The 70 wpc version, with the black face, champagne color handles and red on/off rocker switch.
theaudiotweak
2,781 posts
 
2 output devices per channel. Less there is the better. Tom
yspm
15 posts
 
The consensus on re/blue vs. gold is mixed. Most opinions I have heard favor the red/blue 105W for sound and ability to drive low impedance loads. Most opinions hold them as only subtly different sounding.
http://forum.audiogon.com/cgi-bin/fr.pl?aamps&1074209541&read&keyw&zzst-140+red+blue
http://forum.audiogon.com/cgi-bin/fr.pl?aamps&1163363785
http://forum.audiogon.com/cgi-bin/fr.pl?aamps&1201935167&read&keyw&zzst-140+red+blue
unsound
7,318 posts
 
The B&K ST 140 is not the best choice for low impedance speakers.

http://www.stereophile.com/content/bk-st-140-power-amplifier-1989-measurements
lou_setriodes's avatar
lou_setriodes
673 posts
 
Yspm,
Here's the best part of the link from your post:

"Here is a partial list of amps that have been bettered by the little B&K in my system. Aragon 2004, Hafler Transnova 9300, Meitner STR-50, Sumo Andromada, Counterpoint SA-12, Denon 2200, ASL 1003, and several others I don't recall at the moment."

Curious to know what else was used in those systems that made the B&K come out a winner, but still very impressive...
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