I have a marantz 7706 with a monoprice monolith 7ch x 200 amp -- and they sound great together -- No its not a McIntosh or Mark Levinson experience... and -
I know monolith is not the usual name that comes up here among the flexers in AG that spend $200k on a 2ch system... but ...
For what the system is -- it sounds much better than you would expect it to -- given that it isn't a high - end consideration.
I have always been a fan of Marantz, but others are great too -- I have had anthem, nad, rotel etc... and they are all great --
I gave the monoprice monolith amps a good go - because I bought two of them - and i use one for outdoor and other in ceiling speakers - and I liked the amp so much I bought it to replace an amp I was using with my 7706. Just a quick fact -- monolith amps are designed and produced by ATI. They are no slouch of a mfr.
Just my 2 cents.