Pioneer PM-40
¥ 13,800 (around 1974)
¥ 15,200 (around 1978)
Commentary
Horn type mid-range unit.
The horn is die-cast (4 mm thick) with a precision finish and achieves uniform directional characteristics up to 13 kHz due to the structure of horn curves and fins.
The driver has a structure that cancels unwanted distortion noise caused by natural vibration and resonance of the edge, improving frequency characteristics and reducing harmonic distortion.
Model Rating
Type | Horn type midrange |
Impedance | 8 Ω, 16 Ω |
Cutoff frequency | 500Hz |
Reproduction frequency characteristic | 800 Hz to 16 kHz |
Max Input | 40W |
Rated input | 20W |
Output sound pressure level | 101dB/W/m |
Crossover frequency | Low : 800 Hz or higher High : 16 kHz or less |
Total flux | 30,000maxwell |
Magnetic flux density | 10,000gauss |
Baffle opening | Width 275x Height 124 mm |
External dimensions | Width 315x Height 234x Depth 214 mm |
Weight | 1.9kg |