I have a pair of JC1s (not the +) with matching JC2, very nice sounding and I liked having the ability to switch between class A/B and A. The JC1s run hot in class A but sound very good for lights off listening. Last year I upgraded my system to a Pass X250.5 matched to a XP-20 preamp. The Pass build quality is excellent and the sound is superb. I would put the Pass components a rung or 2 higher in sound quality, but the Parasound JC1s are pretty close.
I also have a Prima Luna tube preamp that I use listening to vinyl LPs or streaming from an Auralic Aries G2 through a Terminator II dac. The combination of the tube preamp with a solid state main amp is, in my opinion, the way to go for extended late night listening. Speakers are GE T-Reference. My dedicated listening room is 14x17 with 8’ ceiling.
I still have the Parasound equipment and will be selling.