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Gamut M250 MK3

I got a pair of Gamut M250 Mk3 mono-blocks that went in place of a D200 mk3. They were installed yesterday, and worked fine for a day. This morning I turned on the amps to warm up. A bit later I went back to the listening room and heard a very loud hum. First I looked out the window for a garbage truck; then put my ears against the speakers. Nothing there. It was coming from the amps. Power-cycle of both amps confirmed that both were making that noise, though one was louder than the other. About 10 minutes later the noise was gone. I have a feeling that this might be one of those intermittent problems that's difficult to track down, but I do want to get to the bottom of it while they're in warranty. To other owners of the M250, have you ever experience such a problem?
ping2357
nico_g
35 posts
 
Thanks for your answer.
The big differences between the D200 and M250 are more power and channel separation ? No big difference in sound, for example bass control or extension ?

What was the problem with the Pass : could you explain a bit more ?
samtse
49 posts
 
M250 of course bass control and extension is better than D200,also micro dynamic is better than D200.
nico_g
35 posts
 
Thanks for your answer.
SO, the M250 is worth the upgrade even if my speakers are easy to drive : Tannoy GRF ?
I can have a pair of M250 for a fair price.
samtse
49 posts
 
I never use and listen Tannoy GRF,so i don't know.but i think if you can have a M250 mklll for a good price,i think it's worth because you don't need change amp on future.M250 mklll can drive most of speaker in the world.
nico_g
35 posts
 
Do you have compared the Gamut with Pass amps, like the X350.5 or the new XA.5 series ?
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