The MP Series - Developed by the Philosophy "All But Oscillation System Should Be Rigid"

Klicka för större bild A New Oscillation System Aimed at Perfect Tracking Capability The pursuit of flexibility enabling perfect trackability of any sound and the realization of low mass are eternal quests of cartridge manufacturers. The new MP Series has been conceived and developed according to this philosophy. The starting point for the high performance MP Series was creation of an oscillation system that enables the signals engraved in the groove of a record to be perfectly picked up. At the same time, each of these signals to be reproduced with sharp clarity and enriched sound. The characteristics of the MP series thus developed are as follows. Development of low mass oscillating block Adoption of a special triangle diamond tip that utilizes a reduced mass, and a newly developed cantilever that is outstanding in modular ratio, and possessing alpha-pips that has hollow construction, has substantially reduced the mass of the oscillating block in general. This has increased the tracking capability and provided that frequency characteristics and reduced distortion factors. Complete separation of oscillating block and magnet For the purpose of reducing the weight and dimensions of the oscillating block, it has been completely separated from the magnet. As a result, it has become possible to increase the output simply by the control of the magnet. Adoption of samarium cobalt magnet. The cartridge weight in general has been reduced by adoption of a magnet circuit that is small but powerful. For the induced magnet, Samarium cobalt magnet (REC 30) that imparts the greatest magnetic energy per unit weight has been adopted, minimizing the distance of the magnet circuit and reducing the magnet energy loss. Rigid body that expels unnecessary resonance While the oscillating block of the MP series has been made to have reduced weight and mass, other parts have been made more rigid than ever with critically selected materials, that eliminate unnecessary resonance. The cylinder, for example, has been made three times physically stronger than the conventional ones with carbon fiber reinforced plastics. The frame has been manufactured with A1 impact material, to obtain clearer sound through a generally improved system. Use of epoxy binder and employment of screws on essential parts also are examples of careful considerations that have been given to its design. Gold tip terminals The terminals have been gold tipped to maintain their electrical and mechanical characteristics for many years. This protects the surface of terminals from oxidation and, at the same lime, minimizes losses and sound deterioration caused by contact resistance. Frame The frame has been fabricated by means of the impact molding of high purity aluminum that is light in weight and has high physical strength. Because of its even density, sound distortion caused by vibration of the frame body is minimal. Special screw The stylus knob and the body have been completely tightened with a special screw. This has eliminated occurrence of resonance at the replaceable stylus section and improved the sound quality. Details of MP-50 Stylus tip Special triangle diamond tip, the mass of which is one third of the conventional tips. It is a semi contact stylus manufactured by super fine particle grinding based on extended stylus technology. This substantially improves the highs and features a broad dynamic range and low distortion factor. Cantilever Since high rigidity is essential for a cantilever, Boron has been selected because it is light in weight, strong and most outstanding in transmission characteristics. Precision fabricated to the order of microns, this rigid cantilever has good starting characteristics, is outstanding in high note range performance and ensures even and distortion-free sound reproduction. Oscillator For the oscillator that is expected to accurately perceive the delicate oscillation of the stylus lip, permalloy, a nickel-iron alloy, has been adopted. Adoption of permalloy, that has high magnetic permeability even in a weak magnetic field, has realized a high sensitivity, a high output and a broad dynamic range. Magnetic circuit Samarium cobalt magnet, having greater magnetic energy than any other magnets available at the present lime, has been adopted. With adoption of this powerful magnet, the magnet circuit has been made smaller and get more powerful. Furthermore, since it enables the magnetic circuit to be made shorter in distance, it has become possible to minimize the magnetic energy loss, one of the causes of deterioration in sound quality. Pole piece A full-scale laminate yoke (thickness 0.1mm + 0.1 mm + 0.1 mm) has been adopted. Use of super permalloy having good magnet sensitivity at its core has reduced the over current loss of the pole piece and has realized flat sound characteristics, with an absence of loss in the high range and peaks in the medium range. Cylinder The cylinder is made of carbon fiber reinforced plastics that is three limes physically stronger than the conventionally used resin (ABS). This has eliminated unnecessary resonance, causing a clearer sound. Magnetic shield casing For realization of a high SN ratio, super permalloy that is outstanding in magnetic shield characteristics, has been adopted.