Hello Everyone, I wonder if you might be able to help. My dad has bought a Sony PSLX 300 USB turntable. When we tested it at my house (going into a Marantz PM6004 amplifier and Pro-Ject Box 5 speakers) it sounded just fine, similar to my own turntable. My dad has now set it up at his home, going into a NAD amplifier and Linn Nexus speakers. The turntable can be heard, but the volume needs to be turned up very high to hear it on a level similar to the other inputs (CD player and music from Ipad via Bluetooth adapter), despite the fact that the turntable is connected to the dedicated turntable input, which, presumably, includes a built-in preamplifier. This is strange, as usually the turntable level is louder than other inputs in my experience. It might be worth mentioning that the amplifier has, perhaps, never been used to play records in the past. Just wondering if anybody might be able to advise. Perhaps an external preamplifier would be the solution? I look forward to hearing from you. Thank you very much. Best wishes. Rich.