Larger listening environments require prodigious amounts of power to deliver room filling sound. That’s exactly what you get with Rotel’s 5 x 250 watt power amplifier. It is important to note that this specification is provided with “all channels driven at 8 ohms” unlike some other manufacturers who stretch the ratings by listing them at 6 ohms or with only one or two channels being driven. Rotel’s RMB-1575 is a true high current audiophile design and can double its output to 5 x 500 watts at 4 ohms with all channels driven. Pure muscle alone, however, does not make a superb amplifier. The RMB-1575 excels at extracting all of the smallest audio details from both music and movie soundtracks alike. Best of all, even with its high power capability the RMB-1075 runs relatively cool, extending the components lifespan thanks to its innovative Class D design.