Check the listing for details. Ortofon OM Qbert Cartridge Premounted on SH-4 Headshell (Single). Color: Black, Condition: New. Listed at 167.99 USD. OM Q.Bert pre-mounted on SH-4 Black headshell The OM Q.Bert on the SH-4 Black headshell is a practical and convenient solution for our customers who wish direct and easy mounting and replacement on their S-shaped tonearm. Features:• Universal mount fitting a wide range of S-shaped tonearms • Ultra high output• Low wear characteristics • Q.Bert neon printed logo on the top of the headshellTailored specifically for scratch, the OM Q.Bert provides unrivaled tracking ability and sonic characteristics. Output voltage at 1000Hz, 5cm/sec. - 11 mVChannel balance at 1kHz - 1,5 dBChannel separation at 1kHz - 22 dBFrequency range at -3dB - 20-18.000 HzTracking ability at 315 Hz at recommmended tracking force - 980 μmCompliance, dynamic lateral - 12 μm/m NStylus type - SphericalStylus tip radius - R 18 μmTracking force range - 2 - 4 gTracking force recommended - 3 g Tracking angle - 20°Internal impedance, DC resistance - 1.680 OhmInternal inductance - 920 mHRecommended load resistance - 47 kOhmRecommended load capacitance - 200-400 pFOM cartridge weight incl. extra weight - 5 gReplacement stylus unit - Q.Bert