Well I just replaced my Marantz MA500's on my mains with a pair of 200's.

First the voicing. The 200's seem a tad bit brighter than the MA 500's. However the Marantz's are well broken in and the M200's are not.

Overall the 200's play much louder (as they should) but also have much better bass extension and slightly better treble extension. Where the Marantz's best the 200's is in the midrange clarity. The 200's seem a bit grainy here.

Take this with a grain of salt as the 200's are not broken in and may change a little or a lot.

Also there is no hum and the hiss is the same as my Marantz amps, i.e. I can hear a hiss if I put my ear right up to the speaker. The speakers are Polk SDA-1C's.

[This message has been edited by morphsci (edited January 27, 2003).]