Designer:

Jonathan Carr

Builder:

Yoshinori Mishima

Type:

Medium weight, medium compliance, low-impedance moving coil cartridge

Stylus:

Lyra-designed long-footprint variable-radius line-contact nude diamond (3um x 70um), slot-mounted

Cantilever system:

Solid boron rod with short one-point wire suspension, directly mounted into cartridge vertical pillar

Coils:

2-layer deep, 6N high-purity copper, square-shaped chemically-purified high-purity iron former, 5.4ohm self-impedance, 9.1uH inductance

Output voltage:

0.5mV@5cm/sec., zero to peak, 45 degrees (CBS test record, other test records may alter results)

Frequency range:

10Hz ~ 50kHz

Channel separation:

35dB or better at 1kHz

Compliance: Approx. 12 x 10-6cm/dyne at 100Hz

Vertical tracking angle: 20 degrees

Cartridge body:

Two-piece composite structure, each piece controlling resonances within the other: Vertical "pillar" is one-piece machining from spring-grade phosphor bronze solid billet, with reduced-surface higher-pressure headshell contact area; horizontal "body" is one-piece machining from high-loss polymer, with threaded brass inserts 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):

9g

Recommended tracking force:

1.65 ~ 1.75g

Recommended load directly into MC phono input:

95.3ohm ~ 816ohm (determine by listening)

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