The new posts on this thread couldn’t have come at a better time. I currently have my DNA-1 amp at SMC getting a complete upgrade of the interior. Bought this amp in 1999 and had Steve upgrade it a couple years later. Talked to Patrick a few months ago about a complete upgrade. To be honest, I was ready to pull the trigger on a new amp I had been eyeing. After multiple conversations he convinced me that Steve was absolutely sure the new DNA-1 would match perfectly with my new speakers I am expecting in February (Salk Audio Song3 Encore). I am now about 30 days from getting my amp back along with the Salks. Patrick has been outstanding relaying advice on power cables, interconnects, and speaker cables. I can’t say enough good things about the information and advice he and Steve have given me. I am not a technical savvy audiophile, so Patrick and Steve’s input has been extremely helpful and reassuring throughout this process. I now nervously await for February to arrive.