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| DIATONE DS-28B |
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| 45,000yen(one set, the 1974 release) |
Tough 25cm corn paper is adopted as a Woofer.
Moreover, in order to lose the natural frequency of the frame itself, the firm
die-casting frame is used. Furthermore, the casting magnet of the Al Nico
system, U type roll edge, etc. realized the play of the heavy low-pitched sound
which is full of a feeling of a lively motion.
The 10cm squawker with
which the design is performed according to the CATENA Lee curve is adopted as a
squawker. With the carved corn which gave curvature outside a little, V type
crossing edge is used for edge.
The tweeter has adopted the polyester
resin system as the material of a diaphragm, as a result of examining enough by
a laser holography.
Cabinet structure is used as an encapsulated type and it is made the distributed
vibration type which distributed the reinforcement unevenly.
Moreover, all the joints are firmly joined with hardness woodwork technology.
Thereby, vibration mode is decentralized and the resonance in which a cabinet
resonates greatly in a certain specific zone is difficult to take place.
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| System |
3 way 3 speaker, a sealing system, and a
book shelf type |
| Use unit |
For low-pitched sound: 25cm corn type
For inside sound: 10cm corn type
For loud sounds: 3cm dome shape
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| Nominal impedance |
8ohms |
| Play frequency band |
40Hz - 20000Hz |
| Crossover frequency |
800Hz, 5000Hz |
| Output sound pressure level |
91dB/W |
| The maximum input |
50W |
| Level control |
Inside sound: Three positions (800Hz -
5000Hz)
Loud sound: Three positions (5000Hz - 20000Hz) |
| Dimensions |
Width 345x height 590x depth of 270mm
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| Weight |
15kg |
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