The Pro-Ject 95g Counterweight (003) is a genuine replacement counterweight for Pro-Ject tonearms in the 003 series. At 95g, this is one of the heavier counterweights in the Pro-Ject range, designed to balance the tonearm correctly when used with medium to heavyweight moving magnet and moving coil cartridges. It is supplied with a calibrated vertical tracking force dial, allowing precise setting of stylus downforce.
What a Counterweight Does
The counterweight mounts at the rear of the tonearm tube, opposite the cartridge. By threading the counterweight onto the rear stub and rotating it, you set the downforce that the stylus exerts on the record groove. Setting the correct tracking force is essential: too little and the stylus will skip or mistrack; too much and both the stylus and your records will suffer premature wear. Each Pro-Ject tonearm counterweight carries a numerical part code that identifies the correct mass and thread specification for that tonearm family.
95g Weight and Tonearm Compatibility
The 003 series counterweight weighs 95g, sitting at the heavier end of the Pro-Ject counterweight range. A heavier counterweight is used when the cartridge body mass falls within the typical 6 to 15 gram bracket, allowing the weight to sit closer to the pivot point while still achieving correct balance. The 003 designation refers to the thread specification and mount type, ensuring a precise fit on compatible tonearm rear stubs without play or vibration. According to the Pro-Ject counterweight chart, the 003 is fitted to a wide range of Pro-Ject turntables and tonearms including the RPM 4, RPM 5.1, RPM 6, RPM 6.1 SB, RPM 9.1, Pro-Ject 2.9, Pro-Ject 6 and 6.1, Perspective, Perspective II, 2Xperience Classic and 2Xperience (with or without 2M Blue). If your existing counterweight has been lost or damaged, or if you are upgrading to a heavier cartridge, this is the correct replacement for 003-series tonearms.
Installation
Thread the counterweight onto the rear stub of the tonearm by hand until it seats securely. With the cartridge and stylus guard fitted, balance the tonearm parallel to the platter surface by adjusting the counterweight position. Once balanced, set the tracking force dial to zero and then rotate the dial to your cartridge manufacturer's recommended VTF figure. Always re-check alignment and anti-skating settings whenever a counterweight is changed.
If you are unsure which counterweight your tonearm uses, please refer to the Pro-Ject counterweight chart or get in touch and we will help identify the correct part.