Thanks Ralph. Yes, I have the EMT OFD 65, and the Miyajima Infinity Mono 3 mil for 78s as well. Aside from noise, I'd worry that the wide grooves of 78s might mess up my microgrove mono cartridges (OFD 15 / 25, Miyajima 1.0 mil). Anyway, you might be pleased to know that I also have the AtmaSphere MP1...I'm your customer from California who asked for the mods so that I can use reel to reel tapes (IEC / NAB). I should send my unit in for an update to the latest version...when funds permit. I hope all is well, and I really appreciate the insight you share on these forums. All the best, Mark