2. amps-preamps
  3. 1387859978

Tube preamp for SS amp

6922, 6H30 or 6SN7 decisions decisions. What sounds good to me might not sound so good to somebody else....I get it, but is there a tube preamp/solid state amp that is not a good match sonically (running a pass labs x250.5 and bryston 4bsst2). I can drive 2hrs and audition some ACR equipment however that's it. Everything else would be purchased out of state and most places will have to special order something else in (ie modwright ls100, cj ET3SE, audible illusions...) and will only take the equipment back for store credit.
chad2635

Showing 2 responses by lowrider57

lowrider57's avatar
lowrider57
5,418 posts
 
Rogue Audio has preamps which offer low output impedances, low enough to mate with SS amps.
The Athena has an output impedance of 220 Ohms,
the Hera II output is 120 Ohms. Gain is 12dB single ended, and 15dB Balanced.
lowrider57's avatar
lowrider57
5,418 posts
 
to Atmasphere...
Very important point regarding Output Impedance at the lower frequencies. But the preamp spec sheets I've seen never state how their output impedance was measured.
Should we assume that it's at 1000Hz unless otherwise indicated?
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