re: the melos, ewe can ask brant, but i'd bet it's the photentiometer wolume/balance control - it's actuated by a tiny little lite-bulb - the brightness controls the wolume. if ya pull the cover, ewe can prolly see it! :>) according to brant, c-j at one time wanted to buy melos yust for the photentiometer technology.
re: amps, i humbly suggest my electrocompaniet aw100 that's currently f/s... & i'm only asking $800... ;~) the only reason i'm selling is cuz it's not bridgeable, & i am going to run a pair of electro amps in bridged-mono fashion. it's currently driving the woofers of my monitors, w/an aw75 driving the tweets. no desire to change amp brands here - at least not until i can aford a pair of the mondo melos tubed mono-blocs... :>)