Pass Labs xa - .5 amps

It's possible the output impedance of the Accuphase C-275 is too high for the XA-.5 series. This would possibly cause less than optimal bass performance from the Pass Labs amplifier. I couldn't find an impedance spec on the web for the C-275, however. Perhaps the owner's manual lists it.

Hi

The output impedance is 50 Ohms. Is that too high for the XA30.5?

50 ohms should produce excellent bass on the XA-30.5.

Soren,
50 ohms is great. What brand and how long are your ic's to the Pass? Is the needle on the Pass moving when you are experiencing the flab? My 30.5 had more articulate bass on my Maggie 3.6 than my previous McIntosh 1000 watt monoblocks (as long as the needle wasn't moving). Going to Pass's 100.5 was a noticable improvement in bass. I haven't heard the 60.5. Twice the power would only give you 3db more loudness BUT that plus each channel having its own power supply would give your more control. Maybe not enough for your taste or speakers.

XA power is expensive. Have you thought of trying one of the X.5 series?

Hi, could someone please describe the sound of the XA30.5?
I heard it recently, and was wondering if my impressions were close to what you are hearing.
Thanks.