I only wish to share my experience(s) with David Shulte and TUC. Totally satisfied on all counts.
Upgraded three receivers, one CD player and three BD players. All of them showed great improvement in sound and picture quality.
Denon 4311 receiver was thin and flat sounding. Upgrades made it pop with sound and the picture was greatly improved. Isolation of surround speakers in particular was impressive. Bass greatly improved and all other parameters, including dialogue, far better with mods.
Cambridge Audio CD player day and night difference after mods. Full, present and engaging to listen to rather than just plain boring from the factory.......to my ears.
Time Portal power cord(s) to the receiver really turns up the performance and more focus to details missed before.
Every item has improved the listening and watching experience for me and the service and professionalism of David is so refreshing.
I played in a major symphony orchestra for 33 years and may have the worst ears in the world BUT they recognize what they hear and TUC's upgrades have made my systems sound much more like what I used to hear on a daily basis at work. Live music and real instruments. I don't have the expertise to know why they are better but have a strong opinion of what I hear and base my judgement on that alone. This is ear candy and I recommend this company and David Shulte with no reservations.
When I listen to music only I use the pure direct, stereo only into PSB Syncrony 1's. The stock Denon with these speakers was very so so and to me very much like grits. Lots of good stuff but no flavor until you put something on them. After the mods the syncronys sound 'good' not so so. This is a big step from boring to fun and satisfying to listen to.