M 310 II E
| Brand | Acutex |
| Manufacturer | Acutex USA International |
| Function | Turntable Cartridge |
| Produced | 1978 |
| Model ID | 310 II E |
| Form Factor | ½" Standard Mount |
| Signal Path | Analog Hardware |
| Dimensions | 1.8 × 1.7 × 2.9 cm (W × H × D) |
| Weight | 6.2g |
| Frequency Response | 20Hz-25kHz (20Hz-20kHz ±1.0dB) |
| Output Voltage | 4.0mV |
| Channel Separation (1kHz) | 28dB |
| Channel Separation (10kHz) | 25dB |
| Channel Balance (1kHz) | 1.0dB |
| IMD (+6dB) | 1.9% |
| Trackability (10kHz) | 30cm/sec |
| Compliance (100Hz) | 20x10⁻⁶cm/dyne |
| Tracking Force Range | 1.5-2.8g |
| Pressure Tracking | 1.5-2.8g |
| Stylus Type | Bi-Radial (0.3x0.7mil) |
| Effective Tip Mass | 0.6mg |
| Body Color | Grey/Orange |