Pass Labs xa - .5 amps

Dear Rtnl - I'm basing my impression of the XA30.5 from the outset that the only thing I change is the power amplifier from the normal situation (Krrel FPB300X) to a new situation (Pass XA30.5). The rest of the equipment, romm etc. is unchanged. Krell are famous for bass control, so its not supprising that other amps have other traids.

By the way, I use Exactpower EP15A on cd and preamplifier.

Hi

I'm normally running Accuphase DP-67, C-275 and Krell FPB 300CX on my Vienna Acoustics The Music. My goal is to get some more body voices - the bass with the Krell is fine ;-)

I have tried Pass XA30.5 in my system and I especially like the midrange and the involvment. What I don't like is a rather slow and to heavy bass. The speakers are 4 Ohms and sensitivity 91 db. They have three 9 inch woofers pr. side.

Can anyone comment on if XA60.5 would solve the issues I have with the XA30.5? It's bigger amp but I have read here on Audiogon that the sound is very similar - they just give a possibility to play louder... (?)

fast reply ;-)

Tvad, what would you suggest? A fuller sound compared to the Krell 300cx but with most of the bass control in place.

;-)

Hi

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

Well, the XA30.5 is an excellent amp. I'm sure. However a small amp. will always have difficulties controlling large areas of woofer - like the VA The Music has. The damping factor is 150 which ok but not extremely high.

"The Music" has the possibility of adjusting the bass in a few steps. When i reduce the bass the result becomes more in the right ball part ;-). Rooms are smaller here in Europe so room gain is a factor.

The IC's are Audence AU24. Balanced all the way. Speaker wires are Kimber 8TC.

When I'm playing marginally loud the needle moves a bit. It does not cross the vertical line, but is moves. Maybe the XA60.5 would be the right choice in my case;-). The XA100.5 are too expensive for me.