JBL L-7 (ca. 1992)
The JBL L-7 is a four-way tower speaker from the early 1990s, part of what JBL then called its new L series. Most of what is known about it comes from an equipment profile in Audio (December 1992, p.116), which documented the system in detail. The L-7 used a 12-inch cone woofer, an 8-inch cone mid-bass driver, a 5-inch cone midrange, and a 1-inch titanium-dome tweeter, all in a vented (bass-reflex) tower cabinet. Crossover points were 180 Hz, 900 Hz, and 4 kHz. That is an elaborate four-way split for a consumer speaker of the period.
Rated sensitivity was 91 dB at 1 watt, with a nominal impedance of 6 ohms. JBL recommended amplifier power from 35 to 450 watts per channel. The cabinet stood 4515/16 inches tall (116.7 cm) by 9⅝ inches wide (24.4 cm) by 17⅝ inches deep (44.8 cm), not counting the base, which mounted flush with the front and rear baffles. Frequency response was specified at 30 Hz to 27 kHz, ±6 dB.
In listening, Audio (December 1992, p.126) described the L-7's sound as well balanced and somewhat up-front, with extended frequency response and excellent dynamics. The reviewer noted that its low-frequency output could keep up with a reference B&W 801 Matrix 2 system, and high-frequency extension was smooth. The profile also observed that the L-7 was capable of peak acoustic output below 120 dB between 200 and 300 Hz.
Beyond the Audio review, documentation on the L-7 is thin. It appears to have been a flagship or near-flagship model in JBL's early-1990s L series - a four-way tower that aimed for reference-level dynamics from a relatively narrow-fronted cabinet. Original pricing and exact production run are not well recorded, but the speaker was current as of late 1992 and remained in the line through at least 1996, when it appeared in dealer advertising.
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