For Sale: Extremely Rare and Vintage Luxman LMC-1 Cartridge
It has been tested on a Pioneer PL-530 and is in excellent working order.
Luxman LMC-1 cartridge, manufactured in 1981, using pure diamond for cantilever and tips. Sound is perfect, very dynamic and wide sound stage.
Here is explain about LMC of Luxman.
MC type cartridge that uses a unique power generation and support method.
The LMC (Linear Magnetic-field Cross) power generation mechanism is adopted as the power generation method, and the unique structure realizes ultra-lightweight and highly efficient and linear power generation. With this method, the combined weight of all power generation systems is reduced to 1/8 of the conventional weight, and the power generation efficiency is five times higher. In the LMC power generation method, two ring-shaped samarium-cobalt dual magnets aligned coaxially with the direction of the cantilever form an ideal magnetic field that is uniform in all directions 360 ° around the cantilever without going through a yoke. increase. As a result, we succeeded in making the magnetic flux orthogonal to the entire surface of the coil without loss, achieving both high efficiency and linearity.
A 0.3φ sapphire rod is used for the cantilever to achieve high fidelity transmission.
Natural diamond is adopted as the material of the stylus, and by making it a semi-line contact type with excellent tracing ability, elastic deformation of the record is suppressed to the minimum and trackability up to 60 kHz is realized. increase.
The centralized mount structure by the original block chassis support structure is adopted. Since the power generation system becomes heavy with the conventional MC cartridge of the type with poor power generation efficiency, we aimed to make it Romans by adopting a monocoque structure that supports it by the case itself without having a chassis to fix it. However, if a lightweight resin case is used with this method, harmful resonance will occur and the reproduced sound will be colored. Since the LMC power generation method has succeeded in making the power generation system ultra-lightweight, it is possible to have sufficient weight and a strong structure for the support part. Therefore, a block chassis is formed using anti-vibration metal with excellent damping characteristics, and the entire vibration system is fixed in the axial (cantilever) direction, and all other parts are also directly connected to the block chassis to form a centralized mount structure. The structure that fixes the vibration system by this structure is only this block chassis, and the cover etc. are not related to the support structure to prevent the coloring of the sound due to deformation and squeal. In LMC-1, the vibration-proof zinc alloy SPZ machined block chassis is adopted as this part.
In the vibration system, the oscillator point is clarified by the stainless steel wire with excellent linearity, and the damper load that becomes non-linear operation is reduced by absorbing the stylus pressure load linearly.
Power generation method: Linear Magnetic-field Cross power generation method Cantilever: 0.3φ sapphire rod Stylus: 0.12mm square semi-line contact type natural diamond Magnet: Samarium Cobalt x2 Chassis: SPZ (vibration-proof zinc alloy) machined Output voltage: 0.1mV (1kHz, 5cm / sec) Channel balance: Within 0.5 dB (1 kHz) Crosstalk: 28dB or more Compliance10x10 -6 cm / dyne Frequency characteristic: 10Hz-60kHz Needle pressure; 1.5g ± 0.2g Impedance: 4Ω Recommended load impedance: Head amplifier: 40Ω or more Step-up transformer: 3Ω or more
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