Music Reference RM-10mkiii Kit

Out of the three that you have I see the RM-200mk2 the least. I take it people hang on to them. What are your thoughts on the main differences between that and the RM-9. I know the RM-9 can't handle Apogee type loads is one main difference. 

A lot of RM-200 MkII owners use them with Martin Logan speakers. They could power some Apogees as the amps power increases as the load decreases: 100 watts 8 ohms, 140 watts 4 ohms, 125 watts 2 ohms, and the amp is stable into 1 ohm loads. They show up more than the RM-10s do. Personally it’s my least favorite of Roger’s designs. The RM-9 is a beast and if you can find an RM-9 Special Edition you should consider buying it as it is completely point-to-point wired. These amps can drive a lot of speakers, especially the ones with 2 ohm taps. As for purchasing a used RM-9 MkI or MkII I would shy away. As we used to repair them I can say that they are probably nearing end of life, mainly due to the driver boards deteriorating and for which there are no replacements. I heard someone in Europe might be replicating them but I haven’t seen any hard evidence.

Yes I can vouch that RM-9 mk1 is likely near end from a non economic repair basis even with a wizard tech who loves and respects the amplifier. I certainly cherish the time I had w mine.

also let’s not forget the great thumbprint Roger put on the Beveridge product line…. Those were some golden times….

I am painstakingly trying to bring my Beveridge RM-1 back to life. Even though it is nearly 50 years old it is still an amazing preamp. I own an RM-3 active crossover as well. Two of them in fact.

If I confused anyone with my RM-100 reference, that was simply a brain fart.  It was the RM-9 as some may have suspected.  Regardless, it was one of the best amps I've owned.