I wanna ask ching what are the difference between c2300+mc252, ma2275 and ma6600. I am thinking which way I should go for. I know c2300+mc252 are more expensive than the rest two amp. But I really other ching's comment. My speaker is Jmlab 1007be, exposure 2010 cdp and linn lp12 TT. I listen jazz, classic and vocal. Thank you for any comments.