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The Audio Note IO II is a high-end moving coil phono cartridge designed with a focus on mechanical integrity, magnetic circuit optimization, and superior wire quality. It uses 99.99% pure silver wire for the coils extending directly to the output terminals to minimize electrical connections and maximize signal purity. The cartridge body is constructed to minimize resonance and standing waves, featuring brass panels bolted around the magnet assembly for rigidity. The cantilever is a tapered titanium tube optimized for efficient energy transfer and dissipation, contributing to the cartridge's clear and true sound reproduction. It employs an AN Type 2 diamond stylus for better tracking, lower surface noise, and longer life. The IO II has a very low output voltage of 0.04 mV at 5 cm/sec, requiring a step-up transformer for optimal performance. It weighs approximately 11 to 18 grams and uses Alnico magnets. The frequency response ranges from 10 to 50 kHz with ±2 dB accuracy, and channel separation exceeds 30 dB at 1 kHz. The recommended tracking force is 2 to 3 grams, with 2.5 grams optimal. Due to its low output and impedance (1 Ohm internal, 3-4 Ohms matching), it is best paired with a suitable step-up transformer and a moving magnet compatible phono stage. The cartridge is designed to be mounted rigidly with up to six screws to ensure mechanical stability and minimize colorations from body resonance. Specifications are subject to change due to ongoing R&D by Audio Note (UK).
Phono cartridge specifications
Size, weight, and appearance
Specifications are community-contributed and may not be accurate or complete. Verify all details with the manufacturer before making purchasing decisions. Terms & Conditions
The closest alternatives on specs, description and the systems they turn up in, with the specs they share set side by side.
The MC Anna Diamond's output is 0.2 mV against the IO II's 0.0 mV, its tracking force 2.4 g against 2.5 g, and its weight 0.016 kg (0 lbs) against 0.018 kg (0 lbs). Both share cartridge type (MC).
The IO Gold's weight is 0.02 kg (0 lbs) against the IO II's 0.018 kg (0 lbs). Both share output (0.0 mV), tracking force (2.5 g), and cartridge type (MC).
The Coralstone's output is 0.3 mV against the IO II's 0.0 mV, its tracking force 1.9 g against 2.5 g, and its weight 0.012 kg (0 lbs) against 0.018 kg (0 lbs). Both share cartridge type (MC).
The MC Anna's output is 0.2 mV against the IO II's 0.0 mV, its tracking force 2.6 g against 2.5 g, and its weight 0.016 kg (0 lbs) against 0.018 kg (0 lbs). Both share cartridge type (MC).
Koetsu Jade Platinum
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