2. amps-preamps
  3. 190498-138624

Audiophile grade passive impedance buffer

Preamp balanced output impedance at 20Hz measured by Stereophile as 6.9k ohms! No problem into 90k ohm balanced input impedance of old amp, but new amp inputs only 10k ohms balanced. If an audiophile grade passive impedance buffer exists on the market, I haven't seen it. Will I need to run single-ended and thereby abandon a fully-balanced setup? Or does one of my components simply need to go?

hickamore
czarivey
5,946 posts
 

Musical Fidelity has one of those tube buffers

hickamore OP
658 posts
 

@armstrod What a fabulous piece of gear! I would buy that thing simply on principle. Now awaiting a dealer response. Do you personally use it?

@czarivey Heard rumors of that one but could not track down a specimen. 

invalid
1,180 posts
 

Space tech labs has several balanced tube buffers.

hickamore OP
658 posts
 

@invalid Fascinating, who knew? Not I. These seem to have balanced OUT, but no balanced IN. Versatile and reasonably priced. Thanks.

invalid
1,180 posts
 

Al from space tech can build whatever you need, just give him a call or email, he usually answers in a few hours or less.

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