2. amps-preamps
  3. 1341955108

Amp preamp impedance matching...can anyone explain?

Hi, I currently have vintage tube gear, but want to try a SS amp with my tube preamp, and may try a SS preamp with my tube amps. I have noted there is an impedance matching issue, but do not understand it. Can anybody provide a quick summary?
Thanks
Jim
river251

Showing 2 responses by vineman55

vineman55
16 posts
 
Thanks for clearing this up here...
vineman55
16 posts
 
Reading this as well and I wanted to add my specs from my Marantz PM-KI-Pearl Integrated that I would like to entertain using as a preamp and then adding an amp...tube or ss still not determined.

The testing of this Pearl unit shows "The output impedance from the Preamp Out jacks was 217 ohms at high and middle frequencies, rising to 495 ohms at 20Hz."

Based on this information, does one still look for the above in the input impedance of 47k or higher?
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