MP-50

The ultimate of all Nagaoka MP series cartridges, MP-50 feature the most up-to-date original technology. These cartridges reproduce the most beautiful sounds presently available. The cantilever, which is a vital part of the oscillation system, has been made of Boron. This material is exceptionally light in weight and very rigid. Originally developed for the space program, Boron makes an ideal material for cartridge cantilevers being more durable than granite, beryllium or carbon fiber. The stylus tip/groove contact area has been increased to make its characteristics in the high range outstanding and to reduce tracking distortion. With this new cantilever and high performance tip, outstanding tracking capability has been realized, substantially improving the quality of sound reproduction in the medium to high making the sound flat and free from distortion. A Samarium cobalt magnet, having greater magnetic energy per unit weight than any other known magnet, has been adopted to make the induced magnet smaller and yet more efficient, thus producing high output. Each of the cartridges comprises critically selected parts such as pole piece of laminated super permalloy. The frame is impact stronger than the conventionally used resinous material (ABS), minimizing harmful vibration and distortion, increasing low level resolution and making the shield effect outstanding. The high-accuracy screw stopping construction of the replaceable stylus section is only one example of the high level technology and careful consideration with which the cartridges have been constructed, ensuring the most transparent and beautiful sound now available.

MP-30

As in the case of MP-50, these cartridges have an oscillation systen that is new in design, leight in weight and has a high rigidity. This, together with adoption of a powerful magnet, enables the sound to be reproduced in clear and brilliant tones. The sound in the high ranges reproduced by these cartridges is especially bautiful. The specially ground semi-line conical stylus tip maintains good contact with the record groove. It is capable of tracking the superhigh notes. The tip-groove contact resistance has been made minimal. To take advantage of the unique performance of this stylus tip, the cantilever has been made of Boron that is light in weight and highly rigid to further improve the tracking capability in the high note range and to eliminate distortion in the medium note range. Samarium cobalt magnet, featuring the most powerful magnet energy of all known materials, has been adopted to realize small and yet highly efficient induced magnet. This has enabled the magnet circuit to be shortened, reucing the magnet loss, one of the causes of the sound quality deterioration. The pole piece consists of the laminated super permalloy as in the case of MP-50, to reduce the overcurrent loss and to make the magnet circuit of flat frequency characteristics. The frame has been made rigid with impact molded aluminium to eliminate unnecessary vibration or resonance. Superpermalloy that is outstanding in magnetic shield characteristics has been adopted as materials for the shield casing to increase the SN ratio. The cylinder has been manufactured with carbon fiber reinforced plastics also for the purposes of eliminating unnecessary resonance. Thus, except for the oscillation system, MP-30 has been made with rigid parts. The advantages of these new materials are fully utilized, and these high quality cartridges have been made to produce high quality sound and to have outstanding tracking capability.

MP-20

Of all the MP series cartridges, the MP-20 feature the highest cost to performance ratio. Having been constructed by using the same material as those for the higher-class MP cartridges with careful precision fabrication technology, MP-20 ensure a sound quality that is high in density, brilliant and carefree. Boron has been used for cantilever, because it has durability close to that of a diamond and it is seldom distorted notwithstanding its light weight. A conical tip of small mass that is capable of completely tracking the most delicate sounds has been selected for the stylus. A Samarium cobalt magnet, a pole piece comprising r frill scale laminated super permalloy, the frame made of PPS material that is three times stronger than the conventional molding material, the shield case made of super permalloy having outstanding magnet shielding efficiency, the cylinder fabricated with carbon fiber reinforced plastics - every part of MP-20, except for the oscillating system, have been made rigid. With the reduced weight/mass of the oscillation system and with the body structure that eliminates unnecessary oscillation wherever possible, MP-20 possess a quality that has long been the object of the technical efforts in pursuit of better sound quality. The terminals have all been gold tipped to protect their surfaces from oxidation for many years and to minimize the contact resistance a loss With all these and other careful consideration, MP-20 cartridge embody the perfection of the MP cartridges.

MP-11

MP-11 enable sound connoisseurs to enjoy economically the pure sound reproduced by the moving permalloy cartridges through the minimized magnetic energy losses. Adoption for its magnetic circuit of Samarium cobalt magnet that is believed to have the most powerful magnetic energy of all materials available at present, is the most important feature of MP-11, which have been developed on the same design concept as that of MP-50, the epitome of the MP series cartridges. Samarium cobalt magnet, which is smaller and yet more powerful than any conventional magnet, has enabled the magnetic circuit to be shortened, thereby minimizing the magnetic energy loss that has harmful effects on the sound quality, especially improving the caracteristics in the high note range. Super permalloy that is 15% thinner than the ones used in the conventional Nagaoka products has been used for the pole piece to minimize the overcurrent loss and to make the sound of all note ranges flat. Also, for the purpose of reducing the weight in general of the oscillation system, 17S super hard aluminium alloy has been selected for cantilever, enabling complicated musical signals to be accurately transmitted without a loss, especially in the high note range. The stylus has super fine particle ground elliptical tip that is outstanding in smoothness and produces clear sound having the least degree of tracking error. Furthermore, the shield casing of super permalloy, the cylinder of carbon fiber reinforced plastics, gold tipped terminals that minimize the contact resistance and are resistant to deterioration by aging, and other available technology for improvement of sound quality has all been unsparingly utilized in production of these cartridges. MP-11, combining the substantially improved sound quality and basic performance , can be placed on your treasured records with a sense of relief.

MP-10

With MP-10, you can fully enjoy beautiful high notes and well-balanced carefree sound. Consistent with the tone characters of the MP series cartridges, MP-10 has been fabricated in pursuit of the best-cost performance. As in the case of the higher-class cartridges of the MP series, Samarium cobalt magnet that has high magnetic energy has been adopted to MP-10, to improve the efficiency of the magnetic circuit and to minimize the magnetic energy loss. On the basis of the design philosophy that priority should always be given to the sound quality, same pole piece, shield casing and cylinder as those used in other MP-cartridges have been adopted to MP-10. Having physically, electrically and mechanically balanced design incorporating an aluminum cantilever and a stylus tip that is outstanding in the tracking capability to realize the reduced mass of the oscillation system, MP-10 embodies all of the outstanding features of the moving permalloy cartridges. MP-10 would be ideal for any beginner to convince himself of the outstanding features of the moving permalloy cartridges that evenly reproduce the recorded sound from low to high note ranges and awaken his sensitivity into dazzlingly brilliant charm of music. You should not fail to discern the difference between the sound reproduced by the smooth tracing capability of MP-10 cartridge and that obtained by a conventional cartridge.