Mark Levinson 33H vs Musical Fidelity KW Mono Amps

I have had the kw mono's at my house while my friend was renovating his house.
I own both the ML 33( on 220V 60amp) ML33h (110V 20amp) and the ASR II Emitter Exclusive. The kw didn't belong in the same room. Power ratings can be misleading. The 33h @150w and the 33@300w have so much more depth, bass slam & resolution that the 1000w was weak by comparision. Just my opinion. My friend after hearing the ML's in my system sold his kw's.

Good luck,Rugyboogie

Rugyboogie -
That's about as good a comparison as one can get. To expand your comment one step further. . .
How much difference is between the 33 and 33H, relative to power, slam, and occaisional aggressive listening periods?

George, I was a very happy camper with my 33h for 8 years. When the 33 were installed it was almost sad to find out how much we had been missing . My wife made the comment and asked if the sub was on. It was not. The 33 has WAY more slam . The unit in my opinion MUST run on 220v 40 amp to really let this amp be all that it can be. If you can go for the 60 amp breaker do it.

Quick question by a novice: can someone explain why a 150W amp is able to deliver more sonic depth and power than a 1000W amp ?? Moreover, ML 33h good enough to drive my Magnepan 3.6R or do I need to go for the 33?

I bought a pair of Mark Levinson 33h recently and enjoy it a lot. Recently the amp will power off after 30 minutes playing. Can anyone tell me how or where to repair them? Thanks in advance, lan