2. amps-preamps
  3. 1169781235

Aesthetix Calypso compatible with Pass amps?

I currently own an Aesthetix Calypso preamp and was considering pairing it with Pass XA-100 monos, however the Pass has an input impedance of 22k. Does anyone out there have any experience regarding using the Calypso with Pass amplification, and are there any issues? I know the Aesthetix website says it requires 10k single ended, 20 k balanced for best results, however 22k is cutting it pretty close. I would appreciate any feedback.
Thank you,
Darrin
rhythmace4218

Showing 2 responses by jmcgrogan2

jmcgrogan2's avatar
jmcgrogan2
6,346 posts
 
Hi Darrin,

That impedance match should not be any issue whatsoever.

I know BAT says 10/1 is fine, and more conservative companies like ARC/Aesthetix recommend 20 or even 30/1. Your Calypso has a 600 output impedence, the Pass' 22K input impedence represents more than a 36/1 ratio.

I don't think impedence will be any factor at all in this situation. FWIW, I currently am using a tube preamp with an output impedence of 600 ohms into my amps with an input impedence of 18K ohm with no issues at all.

Regards,
John
jmcgrogan2's avatar
jmcgrogan2
6,346 posts
 
03-06-07: Mole_rit_sua
Just so I'm 100% clear...

the goal is to min the ratio (all things equal) - so 10:1 is preferred to say a 36:1 -- or am I mixed up? I'm looking at moving to the very same combo.


You are mixed up. A 36:1 ratio is preferred to a 10:1 ratio.

John
More to discover