@soix Yeah man your point is well taken, admittedly I'm on the high end of idiot savant in the DIY world and it likely doesn't make sense for the average consumer to pay someone to perform this kind of fix.... and the McCormack wasn't produced in high enough numbers to create any kind of economic model for anyone to take on this kind of project.... That being said, I'm all about sustainability and keeping great amps alive! and its really silly though. PCB's are so cheap if you have the layout. I can order 5 for less than $50. If you are of a mind to, mail it to me (just the pcb) and I'll send you new pcbs at cost. Would be fun to see Jims AFE circuit. I would also put the gerbers on the diyaudio site for anyone else to utilize. Peace
Don’t buy used McCormack DNA 1990s amps
This is a public service announcement. There are some yahoos on other sites selling 1990s McCormack DNA amps, sometimes at ridiculous prices. While they’re great amps, and I happily owned a DNA 0.5 RevA for 20 years, they’re all gonna fatally fail. Why? Because their input board is at the end of its useful life, and when it fails your amp is dead and not repairable by anyone — not even SMcAudio. It’s a boat anchor. The only option is to sell it for scraps or get an SMcAudio upgrade that’ll cost around $2000. Given my love of my amp I chose to do full upgrades given what else I could’ve gotten for the same same price and just got it back and will forward thoughts if anyone cares. But the purpose of this post is to warn off any prospective buyers of a circa 1990s DNA amp that it’ll fatally fail soon, so unless you get a great price and plan on doing the SMcAudio upgrades just avoid these amps on the used market. You’ve been warned.