the RM200 actually puts out 145watts into 4ohms. The CJ will have a warmer presentation, the Music Reference will command control of the bass and provide the liquidity and soundstaging you expect but without the extreme warmness of the CJ. Amazing Air and Detail. A true Bargain amplifier. I owned the RM9 Mk1 also and ran 84dB eff Magnepan IIIa's without a problem.
But listen First!
Chris
But listen First!
Chris