Audio Database


75,000yen(one set, the 1970 release)

It is 4 way book shelf speaker system which adopted the acoustic air suspension system.

A 30cm corn type unit is adopted as low-pass.
This unit had the tough corn paper by which the special press was carried out, and a magnetic circuit by an AlNiCo-Magnet, and has adopted the roll edge excellent in the linearity as edge.

The dome shape unit (5cm and 3cm) is adopted as an inside region and a high region, respectively.
It excelled in directivity, and further, since it has equipped with the acoustic diffuser, the effect was also doubled and the solid acoustic field has been obtained.

The super tweeter of a metal corn is adopted as a super-high region.
This covers the high region over 10000Hz.

The strange continuous Attenuator is carried in the object for inside regions, and a high region and the object for super-high regions.


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
For inside regions: 5cm dome shape
For high regions: 3cm dome shape
For high [ super-] regions: 3cm corn type
Rated impedance 8ohms
Play frequency band 30Hz - 25000Hz
Output sound pressure level 90 dB/W (new JIS)
Crossover frequency 1500Hz, 6000Hz, 10000Hz
The maximum input 100W
Attenuator For inside regions (1500Hz - 6000Hz): A continuation variable
A high region and for high [ super-] regions (6000Hz - 25000Hz): A continuation variable
Dimensions Width 360x height 585x depth of 286mm
Weight 22.2kg