Has anyone heard the underwood mods? I am looking at getting a 3910 modded but I don't have another 2K to spend on a API etc. Underwood says $650.00 for their work.
I can't speak to the Mods, but I've bought several pieces of equipment from Wally and can vouch for him as a great guy to deal with. Also, check out Six Moons.com, I think they have a number of reviews of Wally's modded products.
I am currently evaluating the 3910 mod. I purchased the Ultimate and sent Parts Connexion my 3910. I have finally let the unit burn in for 200 hours as Wally recommended. So far I am disappointed. The upper bass is overly pronounced and the overall sound isn't open. Vocals never come alive - low level detail seems obscured maybe because of the overly warm upper bass. I am AB-ing the unit with a Benchmark DAC-1. I will say that I don't remember the Benchmark sounding as good as it does now. The mod replaces the clock which Wally claims improves the digital out. I believe that has made a large difference. I have ordered some NOS Mullard 6922 tubes which I'm going to try in the unit next week.
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