Summary: This R500-1D works very well with my existing audio system in my 2000 BMW 740il. The system needed some good Bass and this amp did the job. The fact that it required a small foot print is a plus.
Very good quality, perfect for my audio system in my daily car.
3 May 2013
Summary: I am french, sorry for my bad english. Perfect, very goog quality. I bought it to make me a nice system for my 320i e36. I associated it has a sub Dub2000 which cashes 400W Rms under 2ohm, and this ampli delivers 500W Rms under 2ohm, it's perfect. The remote control transported convict is great practical because I can adjust the level of bass easily without touching has no regulation. That of the happiness for my use.
Summary: The Amplifier is hooked up into two P-3 10" Rockford Fosgates at 4 ohms. The sound quality is sufficient even though my speakers are starving for more this amp puts out about 325 Watts RMS at 4 OHMs. Just what the doctor ordered.