+1 @gdaddy1 SMcAudio will be straight with you. If you like the sound of your pre and send it in to be repaired you might inquire about their mods as they’re known to make big improvements. Just something to consider.
McCormack ALD-1 repair
I have a McCormack ALD-1 in need of repair. I reached out to Conrad-Johnson, who claim on their website to repair McCormack, and received the reply that they no longer do so. Right channel is limping and their is evident heat damage on a board. The resistor color codes cannot be read. My go-to local tech cannot repair it, especially with no schematics. I hate to relegate this sweet pre to use as a beautiful boat anchor. Does anyone know of a business who does repair work on said unit?