Audio Database


19,500yen(It is one price. Around 1970 )

The speaker unit developed for 3 way speaker systems.
It was adopted as AS-4001 or AS-4021.

Rating of a mode
System Corn type squawker unit
Aperture 12cm
Impedance 16ohms
Rated input 15W
Low-pass resonance frequency 200Hz
Play frequency band 200Hz - 3000Hz
Output sound pressure level 100 dB/VA (with 50cm)
Effective oscillating radius 4.7cm
Equivalent mass of a vibration system 5.4gr
Equivalent Qo of a vibration system 0.5
Voice coil diameter 4.0cmphi
Magnetic flux density 1100gauss
The total magnetic flux 26x104maxwells
Permanent magnet 55phix35
The diameter of baffle opening 132mm
Dimension Diameter 162x depth of about 110mm
Weight 3.3kg