2. amps-preamps
  3. 1323999458

Have I mismatched my preamp/amp?

Hey all; I recently purchased a Cary SLP-50B which I will be mating to a Rawson clone of the Pass Aleph 2. When I started doing the math, I know I'm slow, I looked up the output impedance of the Cary and its Aleph 2 from the Pass site and it's 2.2 K Ohms I checked the Pass site for the Aleph 2, being I don't have the exact spec on the Rawson, and the input impedance is 10 K Ohms unbalanced and 25 K Ohms balanced differential. The Cary only has unbalanced outputs. So, how mismatched is this? I understand the 20:1 rule and I'm way off. My point was to use the Cary to warm up the sound a bit of the Rawson, its brutally sharp and I thought warming it up was a good idea. Advice/Comments are welcome. Jack
fz1jmp

Showing 1 response by rrog

rrog
1,958 posts
 
The Quicksilver Full preamp has very low output impedance. The older version is 12.5 ohms and the new version is 2.5 ohms. These Quicksilvers match well and always produce great sound with any amplifier and with their low output impedance they are insensitive to cables and cable length.

It is my understanding Pass had some involvement in the design of some Adcom products and I am not impressed.
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