Ensure the turntable's ground wire is securely attached to the PP 2 .
: Verify that the PP 2 is connected to a standard Line-Level input and not a Phono input on your receiver. Phono Preamplifier PP 2 - HiFi Gear Nad Phono Preamp Pp2 Manual
Plug your turntable's RCA leads into the or MM inputs on the back of the PP 2, depending on your cartridge type. Match the colors: Red for Right (R) and White for Left (L). Ensure the turntable's ground wire is securely attached
Move the PP 2 away from other equipment (like power transformers) to reduce interference. Nad Phono Preamp Pp2 Manual