This simple equation doesn't take into account all factors, including tonearm damping and, internal cartridge damping, but it will give you general idea of compatibility. As an example, if we had an arm/cartridge with a combined mass of 14g, and a cartridge with a compliance of 20, the resonant frequency would be 9.535. Where M is the mass of the arm and cartridge and C is the compliance of the cartridge. Some feel that limiting this range even further, to 9 to 11hZ, is best.įor those of you with a mind for numbers, I've seen the following formula for calculating the resonant frequency of an arm/cartridge pairing: Resonant Frequency = 1000/. The goal in matching a specific cartridge and arm is to achieve a resonance in the 10 to 14Hz range. Similarly, a cartridge/arm combination that exhibits a resonance below the desired range will exaggerate the effects of record warps, or rumble produced by the turntable. In extreme cases, the stylus may actually jump out of the groove. At this frequency a significant jump in output (resulting in a "bloated" or "tubby" sound) will be experienced. A cartridge/arm whose resonance occurs in the region above 20Hz can be influenced by music on the record. This tremendous boost can cause severe problems if it occurs in the region of recorded music (above 20Hz), or in the area where record warps and rumble are problematic (below 5Hz). An increase of 3 to 6dB or more is common. As an example, a heavy weight on a light spring would obviously over-flex the spring, conversely, a light weight on a strong spring would not allow sufficient flexion.Īt resonance, the arm/cartridge combination produces a dramatic rise in output. The "springiness" of the phono cartridge is described as compliance, the weight of the arm is specified in mass. This resonance is due to the interaction of the cartridge (acting as a spring), and the weight of the arm (acting as a mass). To see how these characteristics interact and determine compatibility, let's explore the dynamics of the relationship.Īny cartridge/tonearm combination will exhibit resonance at a specific frequency (or frequencies). To insure a proper match, one must be aware of the mechanical specifications of both the arm and phono cartridge. All cartridges will not work with all tonearms, and vice versa. “Music is the universal language of mankind.”įor best performance, the tonearm and cartridge should be matched. “After silence, that which comes nearest to expressing the inexpressible is music.” “Without music, life would be a mistake.” “Without music, life is a journey through a desert.” “Music is the wine that fills the cup of silence.” “Some people have lives some people have music.” “I've found that no matter what life throws at me, music softens the blow” “.my music isn't just music - it's medicine.” “I haven't understood a bar of music in my life, but I have felt it.”
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