JBL LX80
The JBL LX80 is a 3-way floorstanding loudspeaker that JBL produced sometime in the late 1970s or early 1980s. The exact production years aren't documented. What's known comes largely from period resale listings and forum posts rather than official JBL literature, so the record is thin, but the facts that do survive are consistent.
The LX80 is a reflex (ported) design with a 25 cm woofer, 12 cm midrange, and 2.5 cm tweeter, crossing over at 500 Hz and 3.5 kHz. Frequency response is rated at 32 Hz-20 kHz, sensitivity at 89 dB/W/m, and nominal impedance at 8 ohms. Recommended amplifier power is 20-200 watts. Cabinet dimensions are 280 × 920 × 280 mm (W×H×D). A period classified ad in Audio (January 1979, p.137) offered a modified pair in dark solid oak cabinets for $1250. The ad called the LX80 "JBL's best speaker" at the time, which shows where the model sat in the lineup. Weight is uncertain. One source lists 22 kg per speaker, while a resale listing gives 18 kg (possibly shipping weight), so treat either figure with caution.
Owner reports from forums are brief but positive - "great sounding" and "very good with some grunt" - and no negative reviews surfaced in the research. No original retail price, production dates, or official JBL documentation for the LX80 have been found.
Known specs:
- 3-way floorstanding, reflex bass loading
- Frequency response: 32 Hz–20 kHz
- Sensitivity: 89 dB/W/m
- Impedance: 8 ohms
- Recommended power: 20–200 W
- Crossover: 500 Hz / 3.5 kHz
- Drivers: 25 cm woofer, 12 cm midrange, 2.5 cm tweeter
- Dimensions: 280 × 920 × 280 mm
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