I just invested in a brand new Rotel RMB-1555 multi-channel amp (5 channels), 120 watts/ch into 8 ohms all channels driven. This is a conservative rating. It's breaking in beautifully and I am extremely pleased with its natural warm and smooth sound. I listen to music in multi-channel formats completely surrounding me (coming at me from all sides). This is powering an Integra 40.2 AVR and together they work well. The unit is built like a "military tank" and is one well made solid piece of machinery !! You can't go wrong with the build quality and sound of Rotel audio products.