M 320 III STR LPM (Revised)
| Brand | Acutex |
| Manufacturer | Acutex USA International |
| Series | Lowest Possible Mass |
| Function | Turntable Cartridge |
| Produced | 198? |
| Model ID | 320 III STR "Long Nose" |
| Form Factor | ½" Standard Mount |
| Signal Path | Analog Hardware |
| Dimensions | 1.8 × 1.6 × 2.9 cm (W × H × D) |
| Weight | 5.45g |
| Frequency Response | 20Hz-45kHz (20Hz-20kHz ±0.75dB) |
| Output Voltage (1kHz, 5cm/sec) | 3.2mV |
| Channel Separation (1kHz) | 33dB |
| Channel Separation (10kHz) | 29dB |
| Channel Balance (1kHz) | 1dB |
| DC Resistance | 580Ω |
| Load Resistance | 47kΩ |
| Compliance (100Hz) | 42x10⁻⁶cm/dyne |
| Tracking Force Range | 1.5-2.3g |
| Stylus Type | Perfect STR (Nude Mounted) |
| Effective Tip Mass | 0.5mg |
| Body Color | Gray |
| Stylus Color | Black |