AVID Reference Ruby MC Cartridge Reference Ruby Within the world of expensive esoteric cartridges, the Reference Ruby is not inexpensive but nowhere near inaccessible. Not designed to be second best, it will sit happily on any premium turntable, offering a fresh insight into your record collection. Music always sparkles with a jewell. "One cartridge for the rest of my days spinning vinyl"-Jeff Dorgay Jewel of Sound Acquiring its name by harnessing the immense rigidity of a Ruby cantilever, musically this cartridge offers unparalleled resolution, dynamics and an openness to the sound that totally captivates. Subtle details are a revelation of breath-taking transparency with lower frequencies formidably tight showing no loss of control and thanks to the micro ridge stylus surface noise is vanishingly low. Design Masterpiece By virtue of its construction, precise alignment for optimal sound reproduction is painless, the extending cantilever allowing accurate track selection and the purpose designed stylus guard offering protection when you are absent. Exceeding our own design expectations, Reference Ruby will enrich your musical experience, abandoning the constraints of time to vividly discover your most cherished records with this design masterpiece. "For me, the Reference Ruby joins this select group of cartridges"- Ken Kessler Solid Ruby Cantilever - As the name implies the cantilever is solid Ruby with a Micro-Ridge diamond stylus. The cartridge body is designed and manufactured by AVID and encapsulates components usually unsupported, resulting in less internal resonance and much attention has been paid to energy transfer.For twenty-five years AVID has pushed the envelope of vinyl reproduction, its turntables now renowned throughout the audio industry and discerning music lovers the world over.Their Reference Ruby cartridge is the first of three low output moving coil cartridges to be released and has been designed from the ground up, with every element individually assessed and then as a whole.The moving mass has been reduced with less coil windings to improve dynamics, but the output is a healthy 0.32mV due to the enlarged magnet assembly. Overall mass is 9.1grms Specifications TYPE: MOVING COIL OUTPUT VOLTAGE: 0.32mV FREQUENCY RESPONSE: 10Hz-50KHz TRACKING FORCE: 2.0gr (±0.2gr) LOAD IMPEDANCE: >100Ω CANTILEVER MATERIAL: SOLID RUBY STYLUS PROFILE: MICRO-RIDGE STYLUS MATERIAL: SOLID DIAMOND NET WEIGHT: 9.1gr