JBL P18
Documentation on the JBL P18 is thin. What survives is a single equipment database listing, and it gives the essentials and not much else. The P18 was a 3-way stereo loudspeaker with a 10" woofer, 5" midrange, and 1" tweeter. It was rated at 8 ohms with 90dB sensitivity and a recommended amplifier range of 10-125 watts. The enclosure used a passive radiator up front - the listing specifically notes "passive radiators in front" - along with a rear-firing port. That's an unusual hybrid arrangement for a JBL of this era.
The listed frequency response of 100Hz–20kHz looks incomplete; it's hard to imagine a 10" woofer with a passive radiator not reaching lower, so that figure may be truncated in the source. Beyond that, the record is quiet. No production years, no original price, no dimensions, no crossover points, and no contemporary reviews have surfaced. HiFI-Stereo (March 1996, p.66) touched on subwoofer selection generally in the same period, but not on this model specifically. If you own a P18 and have documentation, it would genuinely help fill a gap.
Known specs from the record:
- 3-way configuration
- 10" woofer, 5" midrange, 1" tweeter
- Front-firing passive radiator plus rear-firing port
- Frequency response: 100Hz–20kHz (possibly incomplete)
- Sensitivity: 90dB
- Impedance: 8 ohms
- Recommended amplifier power: 10–125W
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