Pioneer PW-A25

Commentary

A series 25 cm cone shaped woofer.

The cone paper is made of carefully selected fiber material with high Young's modulus and moderate internal loss.
In addition, high compliance type roll edge is adopted for the edge.

Magnetic circuit using large ferrite magnet is adopted.
The voice coil uses a long voice coil with high magnetic efficiency and uniform magnetic flux even at large amplitude.

Model Rating

Type	25 cm Cone Woofer
Impedance	8 Ω
Lowest resonance frequency (fo)	23 Hz to 37 Hz
Reproduction frequency characteristic	Fo ~ 3.5 kHz
Max Input	40W
Rated input	20W
Output sound pressure level	95dB/W/m
Crossover frequency	3.5 kHz or less
Qo	0.35(fo:30Hz)
Total flux	121,000maxwell
Magnetic flux density	9,450gauss
Equivalent mass	23.5gr
Baffle opening	215 φ mm or 263 φ mm
External dimensions	Diameter 290x Depth 115 mm
Weight	3.64kg