Audio Database


4,900yen(It is one price. Around 1970 )

The Woofer unit for thin speakers adopted as DS- 12S etc.

The barium ferrite is adopted as a magnetic circuit in order to use a thin shape.

Rating of a mode
System Corn type Woofer unit
Aperture 16cm
Impedance 16ohms
Rated input 3W
Low-pass resonance frequency 40Hz
Play frequency band 40Hz - 1500Hz
Output sound pressure level 96 dB/VA (with 50cm)
Effective oscillating radius 6.5cm
Equivalent mass of a vibration system 12gr
Equivalent Qo of a vibration system 0.4
Voice coil diameter 2.3cmphi
Magnetic flux density 12000gauss
The total magnetic flux 11x104maxwells
Permanent magnet 90phix27phix9
The diameter of baffle opening 175mm
Dimension Diameter 240x depth of 67mm
Weight 1.5kg