I haven't purchased anything nor had any GR upgrades, but what he says makes good sense. Although, I'll admit that I'm not quite sold on the tube connectors.
I do like those Rythmik Audio/GR OB servo-controlled subs, seems like a great application of technology and something I'd be more interested in if they weren't so expensive (per pair). Being the value-conscience hobbyist that I am - instead of spending (think it was going to be $5k plus build and finish), I built a stereo pair of Linkwitz Labs Phoenix OB subs (alt version with Tymphany/Peerless drivers) for $700. Super happy with them. I have had online discussions with Danny, and he turned me on to some great DACs a couple years ago - think it was the Holo May Kitsune edition. Danny seems to be a knowledgeable good guy from my experience.
I do like those Rythmik Audio/GR OB servo-controlled subs, seems like a great application of technology and something I'd be more interested in if they weren't so expensive (per pair). Being the value-conscience hobbyist that I am - instead of spending (think it was going to be $5k plus build and finish), I built a stereo pair of Linkwitz Labs Phoenix OB subs (alt version with Tymphany/Peerless drivers) for $700. Super happy with them. I have had online discussions with Danny, and he turned me on to some great DACs a couple years ago - think it was the Holo May Kitsune edition. Danny seems to be a knowledgeable good guy from my experience.