The Pro-Ject 80g Counterweight (part number 002) is a genuine replacement counterweight for compatible Pro-Ject tonearms. Fitting the correct counterweight is essential to achieving accurate tracking force: a counterweight matched to the cartridge mass allows the stylus force to be set precisely, reducing unwanted mechanical resonance and ensuring the cartridge can track the groove correctly.
Compatibility and Use
Each Pro-Ject replacement counterweight is identified by a three-digit code stamped on the body; this unit carries the code 002 and weighs 80g. The counterweight slides onto the rear of the tonearm tube and is locked in place with a grub screw, allowing the tonearm to be balanced before tracking force is dialled in. Refer to your tonearm documentation or the Henley Audio compatibility guide to confirm that the 002 counterweight is appropriate for your cartridge weight.