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
Do you have compared the Gamut with Pass amps, like the X350.5 or the new XA.5 series ?
I didn't compare.but both amp is good.and if you buy PASS amp,you need to concern the impedence because it's low.
The nwer Pass amps have correct input impedance.
And my source has a very low output impedance : less than 50 Ohms.
Hi Nico_g. Nothing wrong with PASS, but in my system, I just love the Gamut sound. I am using tube preamp with the Gamut. The PASS, even with paired with PASS pre-amp, sounded like ordinary electronics. Yes, the M250 is better than the D200 in all areas. The Strads have 2 12" woofers which need more power. I don't know anything about the Tannoy GRF. Like Samtse said, M250s are a keeper.