JBL LX66 (1989–1992)

The JBL LX66 is a floorstanding, 3-way, 4-speaker bass reflex tower from the late 1980s, when JBL was pushing its LX series toward "deeper and more natural sound." It was released in 1989 and manufactured in Denmark through 1992. The Japanese retail price was ¥92,800 per unit. It stands just over a meter high, and both sides of the enclosure are rounded to minimize diffraction effects and cut cabinet-induced coloration.

The driver complement is where the LX66 gets interesting. Two 20 cm (8-inch) cone woofers handle the low band. They are laminated with a high-polymer composite over a pulp base for lighter weight, higher rigidity, and better internal damping, which was JBL's answer to the transient demands of digital sources. The midrange is a 12.5 cm (5-inch) cone, and the top end is a 1.5-inch pure titanium dome tweeter. The woofers are model 408G. The midrange is the 405G, a driver shared across several LX-series models. Crossover points sit at 650 Hz and 3.8 kHz. The system is rated at 4 ohms with 94 dB sensitivity (2.83V/1m) and a frequency response of 45 Hz to 20 kHz. Each cabinet weighs 28 kg and measures 356 × 1,066 × 399 mm (W × H × D). Finish options were rosewood or black laminate.

The LX66 is rear-ported, so leave at least six inches of clearance behind the speaker for proper airflow. Urethane treatment around the drivers suppresses reflected sound and creates a more natural soundfield. Power handling is rated at 150 watts RMS.

What's known about the LX66's reputation comes mostly from the used market. The foam surrounds on the woofers are the classic failure point. Current owners report the foam disintegrating over time, though sound quality is said to be unaffected. Re-foam kits for the 8-inch woofers have been available for around $30, and the 405G midrange remains obtainable as a replacement part. Period reviews are thin on the ground, but the speaker has a following. Sellers describe it as delivering "powerful, high-fidelity audio performance," and one owner notes the sound is "in the best traditions of JBL - powerful and rich." A 2026 median price estimate based on 38 listings sits around €153.

One caution: the record contains conflicting figures from a single Russian classified listing - a 25 cm woofer, 17 kg weight, and smaller dimensions - none of which line up with the Audio Database specs. The Audio Database figures are the most complete and internally consistent, so those are the ones to trust. Documentation on the LX66 is modest otherwise. Most of what's known comes from the Japanese Audio Database entry and scattered marketplace listings.

Type: 3-way, 4-speaker, bass reflex, floorstanding tower
Drivers: 2× 20 cm (8") cone woofers (408G), 12.5 cm (5") cone midrange (405G), 1.5" pure titanium dome tweeter
Frequency response: 45 Hz – 20 kHz
Impedance: 4 ohms
Sensitivity: 94 dB / 2.83V / 1m
Power handling: 150 W RMS
Crossover: 650 Hz, 3.8 kHz
Dimensions: 356 × 1,066 × 399 mm (W × H × D)
Weight: 28 kg
Finish: Rosewood or black laminate