Pro-Ject 125g Counterweight (032)

What Is a Tonearm Counterweight?

A tonearm counterweight sits at the rear of the tonearm tube and counterbalances the mass of the cartridge and headshell at the front. By adjusting the counterweight position along the arm tube, you set the vertical tracking force (VTF), which determines how firmly the stylus presses into the record groove. Correct VTF is critical: too light and the stylus skips; too heavy and it accelerates groove wear and distorts the signal. Using the correct counterweight for your cartridge mass ensures you have adequate adjustment range to reach the manufacturer-specified tracking force.

Pro-Ject Counterweight 032 (125g)

This is the genuine Pro-Ject replacement counterweight carrying model code 032 and weighing 125g. It is designed to provide proper stylus force calibration on compatible Pro-Ject tonearms when fitted with cartridges of an appropriate compliance and mass. The 032 counterweight features a TPE (thermoplastic elastomer) damping insert, which absorbs micro-vibrations before they can travel back up the arm tube and colour the signal. The result is a cleaner, more resolving presentation, particularly noticeable through the mid-range and upper frequencies.

Why Counterweight Mass Matters

Counterweights are not interchangeable across all cartridges. A heavier counterweight is used with lighter cartridges, allowing the weight to sit further forward and still achieve the correct balance point. A 125g counterweight such as this suits medium-to-high compliance cartridges of moderate body mass. If you are upgrading or replacing a cartridge on a compatible Pro-Ject tonearm, check your original counterweight model code to ensure you order the correct replacement. The 032 model code is your reference for ordering.

Specifications