LUXMAN MS-10 38,100yen(one set, the March, 1979 release)

　
The speaker system of aramid fiber adoption which started with the development of unit each and was developed over five years of time.

C2038K which is a 20cm cone type Woofer is carried in low-pass.
The aramid fiber system plastics cone which consists of two or more kinds of quality of a composite material was adopted as the diaphragm of this unit, the science treatment was performed to the mesh-like material (aramid fiber), and the diaphragm excellent in a light weight and rigidity is realized by carrying out heating molding. Moreover, the same material as a cone was adopted also as the damper, and the outstanding flattery nature and responsibility, and controllability have been acquired.
In consideration of the Tran Gent property, the polyurethane form was adopted as the edge and high compliance and low fo are realized on it.
Moreover, bar arm type aluminum die-casting is adopted as a frame, and also in order to reduce air distortion produced on the back side of a damper, a work, such as vacating an air hole, is carried out.

D2501F which is a 2.5cm dome shape tweeter is carried in the high region.
The dome shape diaphragm completed based on the polyester film is adopted as a diaphragm, and relation of sound is made more smooth by using the material of a plastics system homogeneous as a low-pass unit.
Furthermore, the large-sized ferrite magnet with the outer diameter of 70mm, a bore of 36mm, and a thickness of 30mm was adopted as the magnet, and the flux density of 11,000gauss is secured. Moreover, big power handling and capacity have been obtained by adopting a nomex as bobbin material.

The lowpass and high-pass side is designed by -18 dB/oct., and also the network part is designed perform the drive according to the rate of change of each unit in order to make it operate ideally as a filter. Moreover, in order to lessen the interference between units, the corrective network was prepared, and the occurrence of the masking effect near a cross over frequency is prevented.
What was examined also for the material was used, the low-loss type with little direct current resistance in a coil was adopted, and the metallized film type is adopted as a capacitor.

The multi-vent tuning scheme is adopted as the design of an enclosure. On the basis of the enclosure of closed mold, this opened two or more small holes in the rear surface of a box, is a scheme which reduces the air pressure in a box in the suitable status, and has acquired the strength of a sealing scheme and a bass-reflex scheme. By this, it was lost that it is under many pressures to a cone, and the outstanding property has been acquired.
High damped hard particle board is adopted as the quality of the material, inside, the sound-absorption effect is high, the super seal which can suppress an oscillation of particle board effectively is stuck, and the unnecessary radiation from an enclosure is reduced.

Reliability is high to a speaker terminal area, and the lead it1 type terminal which is easy to use is adopted as it. 

Posted in: Luxman, Luxman-Speaker