Audio Database


1,700yen(It is one price. Around 1970 )

The full-range speaker unit of a double cone system.

Directional characteristics are improved with the double cone system.

The object for walls, the object for fronts, or the object for audition is attached to an encapsulated type cabinet, and can mainly be used for a large use.

Rating of a mode
System Double cone type full-range unit
Aperture 20cm
Impedance 16ohms
Rated input 5W
Low-pass resonance frequency 80Hz
Play frequency band 80Hz - 10000Hz
Output sound pressure level 100 dB/W (with 50cm)
Effective oscillating radius 8.8cm
Equivalent mass of a vibration system 9.7gr
Equivalent Qo of a vibration system 1.0
Voice coil diameter 2.3cmphi
Magnetic flux density 8000gauss
The total magnetic flux 7.5x104maxwells
Permanent magnet 30phix25
The diameter of baffle opening 180mm
Dimension Diameter 206.4x depth of 105mm
Weight 0.9kg