@gdnrbob ++1 Two great posts. My DNA-1 is arriving at SMc Audio early this week for a complete rebuild. I bought my amp back in 1997 so the motherboard is probably about shot as per SMc Audio’s experience with DNA-1’s of my vintage.
Steve, Patrick etc. with SMc Audio do great work. They put a lot of pride into their work. And yes, their price for all the work they are doing seems very reasonable if not a downright bargain to me.
My DNA-1 is is driving Vandersteen Treo CT. Any Vandys will yield great music. Don’t forget what gdnrbob said about getting a recent production model as Mr. Vandersteen is regularly upgrading his designs.
Good luck!