OMNIA J44D IMP SD SKATEBOARD is a cartridge with JICO original headshell. Just replace your record player headshell and youre ready to go. Sounds well in position. Plays 3D sound with smooth spread The same specification as the M44G and it is compatible with SHUREs record needle N44G. Product Specifications: Cartridge: J44D Record Needle: N44G IMP SD, Headshell: SKATEBOARD HEADSHELL Playback Frequency Range: 20Hz - 20kHz Output Voltage: 5.0mV - 8mV; Load Resistance: 47kΩ; DC Resistance: Approximately 800Ω; Compliance: L8.5 / V8.5 Channel Balance: .5 or less channels Separation: 20db Tone Arm Mount: 1/2" Standard Mount Cart Type: MM Cantilever: JICO Type S Tip Shape: Synthetic Diamond Round Needle Tip Size: 0.7 mil Needle Pressure: 0.75 - 1.5 g Uses: Listening Weight: Approx. 0.5 oz (13 g).