Audio Database

The

DIATONE DS-77HRX(WN/BK)
62,000yen(one set, the 1988 release)

Description
 
The aramid hybrid honey cam diaphragm which adopted the aramid hybrid FRP as the front skin low-pass, and adopted the cellulose fiber system skin as the back skin is used.
The aramid hybrid FRP makes the Intra ply structure weave in and carry out hybrid weaving of the amorphous silica with high rigidity to aramid cellulose material.
Moreover, a cellulose fiber system skin is the skin material excellent in the internal loss.
High rigidity and a moderate internal loss are realized by making these two diaphragm materials into honeycomb structure.
Moreover, the rigid outstanding R.S. frame is adopted as a frame.

High order former balance of high rigidity and a loss factor is aimed at by hybrid weaving of an inorganic fiber and PAN system quantity intensity carbon fiber which has an organic fiber aramid and a high specific modulus in the diaphragm of an inside region.
moreover -- giving surface-preparation processing at titanium to a center diaphragm -- a high ratio -- the S.R. titanium dome with elasticity is adopted.
Furthermore, the high rigidity R.S. frame is adopted as a frame.

The boron D.U.D. dome which has also adopted the higher rank model is carried in the high region.
The Tran Gent characteristic, high region threshold frequency, a linearity, input-proof nature, etc. are raised with the D.U.D. structure which unified the boron with a high physical-properties value, and a diaphragm and a voice coil bobbin.
Moreover, in order to use low carbon mild-steel material and to decrease a vibration of the material so that the D.M. system of hybrid construction may be adopted and a magnetic property may be satisfied on a plate, the whole plate is covered by the aluminum alloy casting.

The network has prevented muddiness of sound as 2 division structures, in order to lose the mutual intervention of elements.
Moreover, a lamination Orient core is used for a coil and the oxygen-free-copper line is used for wiring.

The distributed vibration type enclosure developed uniquely was used for the enclosure, and 4 side round baffle which made it go around [ both sides and an up-and-down side ] further is used for it.


Rating of a mode
System 3 way 3 speaker, a sealing system, and a book shelf type
Use unit For low-pitched sound: 31cm corn type
For inside sound: 10cm corn type
For loud sounds: 2.5cm dome shape
Nominal impedance 6ohms
Play frequency band 35Hz - 35000Hz
Output sound pressure level 91dB/W/m
Crossover frequency 500Hz, 4000Hz
The maximum input 230W(EIAJ)
Dimensions Width 380x height 680x depth of 325mm
Weight 27kg