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Commentary

A 4 cm cone speaker unit developed for general use.

It can be used for a wide range of applications such as assembly and repair of communications equipment, industrial equipment, audio equipment, and various consumer audio and electronic equipment.

* The tolerance of the standard is ± 15% impedance, ± 20% minimum resonance frequency, ± 2 db output sound pressure level with the standard value.

Model Rating

Type	Cone type speaker unit
Aperture	40mm
Impedance	8 Ω
Lowest resonance frequency	500Hz
Playback frequency band	Fo ~ 7 kHz
Output sound pressure level	83dB/W/1m
Input	0.2W(max)
Air gap magnetic flux density	7,000gauss
Weight	44g