Audio Note IQ III Moving Magnet Cartridge
The IQ III features a rigid yet lightweight body made from Pocon, which is equipped with integral threaded inserts for easy installation in the tonearm head-shell. This mounting system greatly improves mechanical coupling between the cartridge body and head-shell in comparison to the traditional nut & bolt fixing.
The internal coils are made from extremely fine copper wire, and the IQ III uses the same cantilever material and diamond found in the legendary Audio Note IO I moving coil cartridge. Made from titanium tube rather than aluminium, the cantilever is unique, and in combination with the Audio Note Type 1 stylus, offers a level of performance that was often though impossible to achieve with a Moving Magnet design.
The complete stylus assembly is removable, making replacement or upgrade a very simple and cost effective process. In fact, all of the IQ stylus assemblies are interchangeable, meaning that you could start with an IQ-I, and eventually replace the stylus assembly with the vastly superior version used in the IQ-III.
It has been designed to be used with a Moving Magnet compatible phono stage, with an input impedance of 47K Ohms. Total capacitance in parallel (including arm lead and amplifier capacitance) should not exceed 200pF. If other values of load resistance and capacitance are used, the frequency response of the cartridge may depart from the specified values.
LOAD RESISTANCE - 47K Ohms
LOAD CAPACITANCE - 150 - 200 pF
INTERNAL INDUCTANCE - 570mH
INTERNAL RESISTANCE - 660 Ohms
FREQUENCY RESPONSE - 20Hz to 20KHz, +/- 2dB
WEIGHT - 6.3g
FIXING CENTRES - 12.7mm / 0.5"
TRACKING FORCE / WEIGHT - 1.5g - 2.5g (1.75g nominal)
CHANNEL BALANCE - 2dB @ 1KHz
CHANNEL SEPARATION - 25dB @ 1KHz
SENSITIVITY - 6.5mV +/- 1.5dB (1KHz @ 5cm/sec)
STATIC COMPLIANCE - (N lateral) 24mm / (N vertical) 16mm
EQUIVALENT TIP MASS - 0.45mg
VERTICAL TRACKING ANGLE - 24 degrees
NOTE - Due to Audio Note (UK)'s ongoing research and development program, specifications are subject to change without notice.