About 1.5 year ago I had my MF NuVista M3 amp repaired for the ‘source selector issue’ by a well known audio repair shop in the Netherlands. After 6 months the problem had returned. John told me he would be able to solve the issue and I decided to go for it and also upgrade to stage 2. When I turned the M3 on, I immediately heard that the sound had changed (even my wife noticed). I was a bit worried at first because the mid and especially the high tones seemed a bit to the background. I tried a couple of songs to try to find out what was going on, but after these few songs the , problem’ was gone. The change in sound (burn in period) continued for at least 80 hours. The sound really is different from the unmodified M3, and I couldn’t be happier with it. I’m listening through Dynaudio C2 sig’s and the unmodified M3 was able to produce a pretty good bass with them already. After the stage 2 upgrade the bass is incredible full / tight, even at low volumes! Besides the bass there are lots of other differences. The sound is more balanced, the placement of the instruments has improved, and high vocals are really impressive (great clarity). The improvement in placement shocked me during Roger Waters Amused to Death but also on albums like Dire Straits Brothers in Arms there is such a good separation between the instruments! For testing the low frequencies I use the Dark Knight soundtrack (HQ), it makes my windows and doors shake on the medium volumes, incredible. I listen to a broad range of different music and still busy rediscovering the whole collection. Oh, and changing the source selector really feels different than after the first repair, I guess this is what it felt like when new. I’m fully confident that it will be good for many years. John really did a fantastic job and I strongly recommend him for repairs and upgrades! Currently saving to ship my Nu-Vista 3D CD-P for stage 2 upgrades…
FANTASTIC UPGRADE
Alexander Jansen