DESC: The SL-BD20D is an entry-level belt-drive turntable. It features semi-automatic operation with auto return and auto shut-off, and it comes with a moving-magnet cartridge. What's more, this unit features Panasonic's TP4 plug-in cartridge connector system, which makes replacing the cartridge easier. The SL-BD20D has a removable dust cover. It doesn't have a built-in phono preamplifier, so your audio/video receiver must have a phono input to accommodate the SL-BD20D's output level. If your receiver doesn't have a phono input, you'll want to buy a dedicated phono preamp. Or you could opt for a turntable like Denon's DP26F, which has a preamp built in.