Pioneer PAX-20F

Commentary

A 20 cm composite 2-way speaker unit developed as a high-end coaxial type.

Up until then, Pioneer had released the PAX-20A/E using a cone-type tweeter and the PAX-20G using a reflex horn tweeter, but the PAX-20F was developed for users seeking higher performance.

A cone type woofer is used for the low range.
The edge uses a Cross Edge coated with a special dump material.

A rectangular horn type tweeter with improved directivity and sound quality is combined for the high range.
The horn is an aluminum die-cast horn with an equalizer.
Also, the horn opening is offset from the axis of the woofer cone to prevent interference distortion.

Model Rating

Type	20cm2-way compound speaker
Impedance	8 Ω, 16 Ω
Lowest resonance frequency (fo)	30 Hz to 50 Hz
Reproduction frequency characteristic	Fo ~ 20 kHz
Max Input	15W
Rated input	10W
Output sound pressure level	99dB/W
Equivalent mass	14g
Qo	0.52(fo=45Hz)
Crossover frequency	3.5kHz
Total flux	Woofer : 85,000 maxwell Tweeter : 13,000 maxwell
Magnetic flux density	Woofer : 9,100 gauss Tweeter : 9,000 gauss
Mounting Hole Dimensions	193mm
Baffle opening	172mm
External dimensions	Diameter 216x Depth 143 mm
Weight	3kg