Summary: I think that if you are able to get this second hand or refurbished, it is well worth the try. At $450, there may be other choices. My NAD receiver was better but in terms of reliability there is absolutely no match between the two brands. I ran the amp through several types of speakers and always found the sound OK but not thrilling- maybe a bit thin, for my taste at least.
Summary: The bottom line was not spending more than $500.00. Doesn't measure up to higher end equipment but it's not advertised to. I'm using this in a very confined space to replace a Kenwood 9100 that ran beautifully for over 20 years. The 9100 boasted very clean characteristics and authentic sound for a lower price integrated amplifier to which the Marantz doesn't hold a candle.
Summary: This amp comes with a separate IEC rear mains cable which needs a minimum of 6.5 cm more rear space than the technical data suggests. Before I could use it I had to invest in a right angled IEC connector; very irritating. Compared to my old Pioneer kit, which this replaces, it is a relatively large product and I also had to use right angled phono adapters, in spite of measuring the space carefully before purchase.
Summary: fabrication très basique connecteurs RCA non-dorés borniers HP n'acceptant pas les cables de diamètre à partir de 4 mm2 et de très faible qualité mécanique pieds décoratifs mais pas amortisseurs notice (avec feuille additive ) pas claire sur la fonction " standby " .