The Pro-Ject 71g Counterweight (part number 030) is a replacement and upgrade counterweight designed for use with Pro-Ject tonearms. Correct counterweight selection is essential for achieving accurate cartridge tracking force and proper tonearm balance, both of which have a direct effect on record playback quality and stylus longevity.
Purpose and Function
A tonearm counterweight sits at the rear of the tonearm and counterbalances the weight of the headshell and cartridge at the front. Once balanced at zero tracking force, the counterweight is then dialled in to apply the manufacturer-recommended vertical tracking force to the stylus. The 71g weight of this counterweight makes it suitable for use with lighter-to-mid-weight cartridge combinations where the standard supplied counterweight cannot achieve proper balance.
Compatibility
This counterweight is part of the official Pro-Ject accessories range (part number 030) and is intended for use with compatible Pro-Ject tonearms. Pro-Ject supplies an assortment of counterweights in different masses to cover the wide variety of cartridges and headshells in use, ensuring every combination can be correctly balanced. Refer to your tonearm documentation or the Pro-Ject compatibility guide to confirm suitability before fitting.
Installation
The counterweight threads onto the rear stub of the tonearm. Once fitted, balance the arm at zero tracking force, then rotate the tracking force dial to the cartridge manufacturer's recommended value. Take care to set anti-skate appropriately after adjusting tracking force. No tools are required for installation.