Pioneer PAX-A25

Commentary

A series 2-way coaxial speaker unit.

A 25 cm cone type woofer is used for the low range.
Ferrite magnets are used for the magnetic circuit, and high-compliance cone paper with roll edges, large dampers, and voice coils made of aluminum wire with a wide winding width are used for the vibration system. These measures improve the linearity against amplitude and the distortion at large input.

A wide-angle cellular horn is used for the high frequency band, and the directional characteristics are improved by an equalizer installed in front of the diaphragm.

Model Rating

Type	25cm2-way coaxial speaker
Impedance	8 Ω
Lowest resonance frequency (fo)	23 Hz to 37 Hz
Reproduction frequency characteristic	Fo ~ 20 kHz
Max Input	40W
Rated input	20W
Output sound pressure level	95dB/W/m
Crossover frequency	3.5kHz
Qo	0.35(fo:30Hz)
Total flux	Woofer : 121,000 maxwell Tweeter : 11,000 maxwell
Magnetic flux density	Woofer : 9,450 gauss Tweeter : 10,500 gauss
Equivalent mass	23.5gr
Baffle opening	215 φ mm or 263 φ mm
External dimensions	Diameter 290 φ x Depth 115 mm
Weight	3.9kg