Used Pre - Ayre, Pass or Para JC2?


Just wondering what your thoughts were on these three possibilities. One feature I'm pretty sure I'll need is bypass.

I have the Parasound P7 and really like it, but I've also heard the Ayre gear and have been enthralled. Balanced in/outs a must.

Thoughts?
erik_squires
Bypass is for integrating a HT processor. Bypass allows the HT Processor to take over volume for all 7.1 channels, though L and R continue to be routed through the 2 channel music preamp.
I'm very pleased with the sound I get with my JC 2 BP.  For stereo, it takes output from an Ayer C-5xeMP or JC 3 phono stage and outputs to a pair of JC 1 amps.  For multichannel, the front LR from a Bryston SP3 is passed through the JC 2 to the JC 1s.
I really like the audio refinement pre5 by YBA. All analog with lots of inputs, imaging and presence. I have an extra one for sale. 
Ayre and Pass generally thought to be a level above the parasound product which provides good value for the $. Both the ayre  and pass products are excellent and if cost is an issue both make great integrated amps.