Spec :In full surround sound;Perfect as a replacement or backup cartridge;Output voltage (at 1k Hz, 5 cm/sec): 4 mV +- 3dB;Channel balance (at 1kHz): below 1 dB;Channel separation (at 1kHz): more than 15 dB;Frequency response: 20 ~ 20k Hz;Tracking force: 3.0g (2.5 ~ 3.5g);Stylus Tip: stereo ruby diamond tip;Compatible With Many brand Turntables:Works for Ion LPDock, LP2CD, LP2Flash, IProfile, Profile Flash, Profile Pro,Profile Lp, ITTUSB05, ITTUSB, ITTUSB10, ITTCD10, IDJ03, ITT02A, ITT03, TTUSB, TTUSB05, TTUSB05XL, TTUSB10,TTUSBDC;p>MINISTRY OF SOUND CT01, TT100, TT1000;Numark Groovetool RS, GTRS, TTUSB, TT1600, TT1600 mk2, TT1610, TT1650;Otto ST09D, STW40J, DCX702, DCX22, DCX1000, DCX1050;Fisher ST09D, STW17J, STW40J, MT223A, MT228, MT229, MT851, MT854, MT855A;Gemini CN1000, XL series,XL100, XL300, XL500, TT01;Goodmans CRN-2500-1, GSP400, GSP400S;Kenwood/Trio N69, P31, P110;Sharp/Optonica STY158;Steepletone SSTY3;KAM BDX350, KC1, KS1, DDX1200,DDX2000, DDX3000, DDX3800, DDX4000 (will not fit DDX1200B, DDX2000B);<