I have the tubed Audio GD preamp. Lovely sound. Stellar preamp IMO. I also have the Voyager GAN amp. Terrific amplifier that does have great clarity and a tubelike mid/high frequency presentation. I have PassLabs, JC1 monoblocks, Canary Tube monoblocks, etc. The Voyager GAN, except for head banging low end, is my favorite amp.
Walter has been great to deal with over the years.