I bought a GamuT DI-150 and it was a wonderful sounding integrated amplifier. It was also beautiful to look at - - - Probably the best looking piece of audio gear I've ever seen.
My only problem with the Gamut was the fact that it didn't have a balance control. In the room where the integrated is to be used, a balance control is quite valuable and somewhat necessary.
This is also a problem with the wide variety of Musical Fidelity integrated amps - no balance control.
I sold the GamuT and bought a Rowland Concerto integrated. Sounds just about as good (I think it sounds every bit as good) and it does have my precious balance control. I guess the only problem with the Rowland is that it doesn't begin to look as good as the GamuT. Oh Well. . . . .