Analog Planet is a Groove Tubes dealer. I don't know what impact, if any, this will have on us. I hope they get behind the pro audio line, which is great, but has been very under-represented/under-marketed. Hopefully Fender won't dumb it down to a pure MI line, because the GT Pro Audio stuff has sort of been teetering on that ledge for a few years. Studio guys don't take it seriously because they think it's an MI line. All they'd have to do is listen to a ViPre or a SuPre or a Glory comp to realize that this stuff holds its own against, and often beats, venerated studio brands like Tube-Tech and Summit and DW Fearn and the like.
Aspen Pittman, GT's founder and designer, is a master tube circuit-rician.
The mics are excellent for the money too, a cut above the typical Chinese condensers out there.
PS: I live my new Fender American Standard Telecaster. Best guitar I've acquired in years!