Summary: Solid performing amplifier. I wasn't blown away with it's output, but it ably handled all types of recording quality. It took poorly recorded music and made it sound acceptable. It didn't diminish high-quality recorded music. However, it didn't enrich it either.
Summary: I have read many of this product reviews; it motivates me to add it to improve my already great sound system. I expect this product will make my sound system to ultimate sound stage. But a little disappointed, after I hook up to my SR7005 receiver, I found no different sound at all.
Summary: I bought this amplifier to power a modest 5.1-channel home theater system that is still a work in progress. The MM7055 5-channel amplifier is paired with the Marantz AV7005 preamplifier (now out of production and replaced by the AV7701), Klipsch Heresy III speakers and a Klipsch SW-110 subwoofer.
Summary: Movies' biggest challenge for sound systems seems to be their wide dynamic range. I have owned 75W/ch & 100W/ch systems, and with each step up have found the movie watching experience to be transformed. But no previous systems prepared me for this upgrade.
Pros: Relaxed, plentiful power reserves. Clean but non-metallic sound. Cool look. DLR and RCA connections.
Summary: I use my home theater system every day, so I feel like I get more bang per buck out of the money I spend on it than with other things I spend money on. I replaced a 600 series Onkyo a/v receiver with this Marantz MM7055 amplifier and the Marantz SR7005 preamp.
Summary: Got this with the 7701, upgrading from a receiver with less power. (Lucked out and got both at open box price.) The amp does seem to match its rated 5 channel power, many amps I've seen or tried recently appear to suffer from inflated power ratings, but not this one.
Pros: Good price, honest power, good sound quality five channels
Summary: I am using the mm7055 to power a second zone in my home, it is a very strong amp that really fills out the space nicely. The Marantz sound is inpecable. I could not be happier with the investment.