When I posted, the above posts weren't there. If it does have the DL-103 low output cartridge, then you probably do need an outboard phono preamp for moving coil (MC) cartridges. Also, you do need to turn off the preamp in the MAC, if that is the cartridge, and if your going to use an outboard preamp.
The phono amp built into the MAC is for MM (moving magnet) cartridges only. You do need to check the type of cartridge being used.
The phono amp built into the MAC is for MM (moving magnet) cartridges only. You do need to check the type of cartridge being used.