Older Nakamichi Gear ?? Stasis ??

Hi-

I'd like to get a simple system that is very warm
sounding. I'm specifically looking at older (used)
Nakamichi receivers and CD players. I am thinking
about a Nakamichi RE-2 Reciever with MB-2S CD player
or an SR-4A with OMS-7AII. I want it to be a simple
2 piece system and I want to use just one remote. Now
for my questions...

The SR-4A used a "Stasis" design. The RE-2 did not.
How did this affect the sound? I would think the SR-4A
is a warmer sound based on having a "Stasis" design???
Which model sounded better?

On the CD player side, which sounded better, the OMS-7AII
or the MB-2S ??

Thanks
Tom