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ditch the Krell FPB 400cx for my 'new' Sophia 2's?

I know, this sounds like a post from 2008 - but it's not! I've had my trusty Krell FPB 400cx for 15 years - I needed the high current for Aerial 10T's. It was the last generation mega amp from Krell before Dan. D. left. To me it is very smooth (not etched!), and of course the bass control is amazing. I just bought Wilson Sophia 2's (Wow! - a dream come true), and have also newly added an ARC CD8 and an ARC Ref 5se upstream. It sounds fantastic. I'm wondering whether replacing the amp would make it even better (you know how that goes). ~$6K budget for used. I'd like SS with more life/better mid's, and great bass and punch. Small room, but I do like to turn it up, so plenty of power. I've heard Pass Labs might fit the bill. Maybe a X250.5, X350.5, or X250.8? Any thoughts folks? I want to make sure an X250 will have enough power. Thanks - everyone's input is always so helpful! 
tinear1
9 responses Add your response
audiogabby's avatar
audiogabby
183 posts
 
I just listened to a pair of Revel F208 driven by Magnus 400 amp today and I was very impressed with the Magnus. Its a reference level power amplifier. 
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minorl
1,016 posts
 
If there is nothing wrong with the Krell amp or the sound from it with those speakers, I wouldn't even think about replacing it.

I know there was a time when Krell products seemed very bright to my ears, but I don't think this amp fell within that group.

If you are anywhere close to an authorized or (qualified) Krell service center, I would get a friend and take it to that place to have it checked.

I personally wouldn't do any work on it unless it was necessary.  But, it can't hurt to have the amp, capacitors, etc. checked to make sure they are okay.

enjoy
tinear1 OP
49 posts
 
I ended up getting a Pass labs X250.8. Not much if any compromise in the bass, and a big improvement in midrange (more natural, more substantial 3D mages) and high end (great detail but more relaxed and integrated into the overall sound). 
tinear1 OP
49 posts
 
I ended up getting a Pass labs X250.8. Not much if any compromise in the bass, and a big improvement in midrange (more natural, more substantial 3D mages) and high end (great detail but more relaxed and integrated into the overall sound). 
erik_squires
16,122 posts
 
The D'Agostinos I've heard with recent Wilsons were outstanding.  The Luxman's not far behind it.

If you get a chance to audition the integrated Luxmans in your system you should.
tinear1 OP
49 posts
 
4425 - You make a great point. Thanks for that.
4425
861 posts
 
you’ve got a great amp from krell’s golden days. i might have it worked over by krell but i can’t imagine selling it. just an opinion
michaela
314 posts
 
Sorry I can’t answer about the Krell with the Sophia 2’a but I can say, having had them driven by McIntosh Mc501’s that to my ear, they like the high powered solid state amps. I haven’t heard pass only good things so it seems like you are on the right path. Good luck!
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