Pro-Ject Record Puck record clamp

The heavy clamp flattens the record on the turntable platter. By stabilising it, it makes the music more defined and precise. The dynamic range also appears to be better spread throughout the audio spectrum and the playing more physical. It is designed to used on composite or acrylic platters not on platters using wool felt, such as the Planars from Rega. Its weight means that it must not be used on suspended turntables, where readjusting the springs is required but not recommended.