Pass labs krell parasound amps


Hello, Looking for feedback on the best sound and reliability of these amps, how do they compare to one another. Looking to spend 5-6k on used amp from these choices: Pass Labs x250.8, Krell Duo 300xd, Parasound jc5 or Mcintosh Mc312.

I have Mark Levinson no526 preamp and Revel 228be speakers and like a very open, transparent sound with deep soundstage. 

Thanks for your response. 

lnitm

Piebaldpython. I don't think my rack will hold the weight of the 350.8 or it could be an option. Thanks 

Curious why you think you need 250-300 watts? Your speakers are 90db efficiency.  I would think a high current 100watt amp would be more than you would ever need. 

I currently have 250 wpc and previous levinson Amp was 300. I like having the headroom and not strain the Amp like I did with a Rotel with 200wpc. To each his own but I play a little loud at times. I like to feel the music.  

250 watts is perfect for me. 

JC5, have owned a number of good amps..... this is fantastic for the money,  slightly used. ...it can be had for $5k or less.  of course it doesn't have the "NAME" of PASS etc.   but I'm talking about bottom end "sound quality", controlled bass, imaging, etc.     and built VERY well indeed.   run it with REVEL's and it is awesome.