High Quality Headshell, AT-3600L cartridge and stylus, needle for Gemini TT01, TT02, TT03, HD15, XLBD40, XLDD50 IV, PT1000, PT2000, PT2100, PT2400, PT2410, PT2600, XL1800Q Technical Information: Frequency Response: 20 - 20,000Hz Channel Separation: 18 dB at 1kHz Channel Balance: 1.5dB Recommended Tracking Force: 2.5 - 3.5g Vertical Tracking Angle: 24° Recommended Load Impedance: 47kΩ Output Voltage: 4.2 mV (1kHz / 5cm/sec) Stylus Shape: Conical Features: 1. Premium performance, provides excellent clarity and detailed performance 2. High quality, each cartridge is carefully assembled and tested 3. Protective needle cover for when not in use Specification: Fixing hole spacing: 13mm (measure the centre distance of two holes) Cartridge terminal: R+, R-, L+, L- 4 Terminals colour: R+=red, R-=green, L+=white, L-=blue Recommended acupressure range: 1.5g-2g