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