A:AnswerThe mcr232 comes with spring loaded clips for speaker wiring and the mcr332 comes with upgraded screw type posts for optional banana plugs and speaker wiring.
A:AnswerAll three units, side by side is 18 inches wide, 8 inches high. I have my speakers spaced out a bit to 24 inches. The system is quite compact and adaptable for shelf or table top.
A:AnswerI guess I don't understand your statement about loud. I rather doubt it. Yes, I suppose you could turn it up as high as it will go but remember this does not come with a bass sub-woofer. It is in addition to the system. You could take down some of the high tones with the sub perhaps. This is more a system to use in a small area like a bedroom or office although I use it in my living room. I don't turn it up enough to wake the neighborhood.
A:AnswerYou can space the speakers further apart, but it is limited in providing true surround since it doesn't have necessary additional woofer and additional speakers.
A:AnswerMy area popular FM music stations has great reception, even without the FM antenna supplied.
I have tried cheaper "boom box" types and all had poor reception.
My best advice: BUY THE YAMAHA, TRY IT? If you don't like it, RETURN IT.