Designer :
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Jonathan Carr
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Builder :
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Yoshinori Mishima (final build, testing), Akiko Ishiyama (primary build)
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Type :
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Medium weight, medium compliance, low-impedance moving coil cartridge
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Stylus:
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Namiki microridge line-contact nude diamond stylus (2.5um x 75um), surface-mounted
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Cantilever system:
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Solid boron rod with short one-point wire suspension, directly mounted into cartridge body
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Coils:
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3-layer deep, 6N high-purity copper, square-shaped high-purity iron former, 6.3ohm self-impedance, 9.5uH inductance
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Output voltage:
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0.6mV@5cm/sec., zero to peak, 45 degrees (CBS test record, other test records may alter results)
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Frequency range:
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10Hz ~ 50kHz
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Channel separation:
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30dB or better at 1kHz
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Compliance:
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Approx. 12 x 10-6cm/dyne at 100Hz
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Vertical tracking angle:
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20 degrees
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Cartridge body:
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One-piece machining from solid 6063 aluminum billet, partially non-parallel shaping, body threaded directly for mounting screws
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Cartridge mounting screws:
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2.6mm 0.45 pitch JIS standard
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Distance from mounting holes to stylus tip:
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9.5mm
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Cartridge weight (without stylus cover):
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7.3g
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Recommended tracking force:
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1.7g ~ 1.8g (1.75g preferred)
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Recommended load directly into MC phono input:
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97.6ohm ~ 806ohm (determine by listening, or follow detailed guidelines in user manual)
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Recommended load via step-up transformer:
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5 ~15ohm (step-up transformer's output must be connected to 10kohm ~ 47kohm MM-level RIAA input, preferably via short, low-capacitance cable)
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Recommended tonearms:
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High-quality pivoted or linear (tangential) tonearms with rigid bearing(s), adjustable anti-skating force, preferably VTA adjustment
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