Parasound JC-1 with B&W Nautilus speakers?

Hello All,have any of you had the chance to listen to the JC-1 and B&W Nautilus speakers? I currently have B&W N802 for LR front, HTM1 Center, N804 Surround. My Pre is B&K Ref-50 and Amp is B&K Ref-200.5. I am looking to upgrade my system for better 2 channel performance. I am starting with the Amp first, 2 ch pre-amp with unity gain for HT bypass and then CD a high quality combo DVD/SACD/CD. I will keep my B&K equipment for HT use. I am considering the following amps; Levinson 436, Mcintosh MC602 or MC501, and Parasound JC-1. I have already auditioned the Mcintosh and Levinson in my home and will be getting the JC-1 this week from my local dealer to audition. Thanks for your input.