Pioneer PM-500
¥ 7,500 (around the late 1960 s?)
Commentary
Horn type mid-range unit with straight horn.
Excellent directional characteristics are obtained by making the opening rectangular.
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Model Rating
| Type | Horn type midrange |
| Impedance | 8 Ω / 16 Ω |
| Cutoff frequency | 500Hz |
| Playback frequency band | 500 Hz to 13 kHz |
| Optimum use range | 700 Hz ~ 5 kHz (at 3-way) |
| Output sound pressure level | 111dB/W |
| Max Input | 25W |
| External dimensions | Width 330x Height 89x Depth 330 mm |
| Weight | 2kg |