Jensen P12
Not much is documented about the Jensen P12 as a standalone model. What survives in the period record is Jensen's own advertising for a complete high-fidelity system called the Concerto, built around a 12-inch woofer that the ads designate P12-NL L -F. That's the fullest trace of this driver.
High Fidelity (November 1954, p.3) carried an advertisement describing the P12-NLF as a 12-inch woofer with bass response designed specifically for the Bass-Ultraflex cabinet. It was paired with the RP-102 HF tweeter, which handled frequencies above 2,000 cycles smoothly and extended toward the upper limits of audibility. Audio (November 1954, p.43) ran the same ad and listed the impedance at 16 ohms and the power rating at 25 watts. The Concerto cabinet also carried a high-frequency balance control on its right side.
The ad appears again in High Fidelity (February 1955, p.3). Beyond that run, almost nothing else is recorded about the P12. No standalone price, no production dates and no independent test data have surfaced in the available documentation.
Known from the period ads:
- 12-inch woofer
- Impedance: 16 ohms
- Power rating: 25 watts
- Designed for the Jensen Bass-Ultraflex enclosure (Concerto system)
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