Audio Database


125,000yen(one set, the 1974 release)

It is 4 way book shelf speaker system which adopted the acoustic air suspension system.
In order not to only finish with measurement in an anechoic room, for example, to use the ground as infinite baffle, the characteristics the characteristic when embedding on the ground, at the time of carrying out every [ direct ] to a floor plate, etc. are also measured.

A 30cm Woofer was adopted as low-pass, and the dome shape unit is adopted as an inside region, a high region, and a super-high region.
It is automatically connected with the dome shape unit by using phenol resin, paper, and elasticity aluminum.

The level control is carried in the inside region, the quantity region, and the super-high region, respectively.

Directional characteristics etc. are improved by adopting the edgeless cabinet which had adopted the unit layout symmetrical with the enclosure, and lost the hollow of the baffle side.
Moreover, the material was also fully examined, used the multilayer-structure particle board for 5th page other than a backlining, and has employed as a backlining Canadian Douglas Farr who was excellent in the damping characteristic.

Rating of a mode
System 4 ways and 4 speaker acoustic air suspension system
- Book shelf type
Use unit etc. For low-pass: 30cm corn type (PW-3040BM)
For inside regions: 6cm dome shape (DM-6010CM)
For high regions: 2.3cm dome shape (DH-2310CM)
For high [ super-] regions: 1.6cm dome shape (DH-1670BM)
Rated impedance 6ohms
Play frequency band 30Hz - 35000Hz
Output sound pressure level 90 dB/W (new JIS)
Crossover frequency 600Hz, 5000Hz, 10000Hz
The maximum input 100W
Level control For inside regions: Four positions
For high regions: Four positions
For high [ super-] regions: Three positions
Dimensions Width 360x height 620x depth of 328mm
Weight 34kg