JBL 702VX (1979)
The JBL 702VX is a three-way bookshelf speaker from the Radiance series. JBL positioned the line with the concept of "from the first step of audio to JBL." It was an entry point into the brand for listeners who wanted JBL sound without stepping all the way up to the studio-monitor lines. It was released in 1979 at ¥48,000 per unit. The Radiance series also included the smaller 502VX and the larger 902VX. All three are compatible with the JBL 303G-001 tweeter.
It's a bass-reflex design with a 25 cm (10″) cone woofer, a 13 cm cone midrange, and a 7.5 cm cone tweeter, crossing over at 600 Hz and 3 kHz. Nominal impedance is 4 ohms, and JBL recommended amplifiers from 10W up to 150W continuous. The cabinet measures 404 × 648 × 284 mm and weighs 17.3 kg packed. The enclosure has a walnut wood-grain vinyl finish, described in period material as furniture-grade and resistant to stains. The front baffle is finished in reflective, metalized Mylar. The high-frequency output is adjustable to suit the listening space. The design goal was optimal stereo reproduction.
JBL's in-house Sound Quality Examination Committee, called the Golden Year, signed off on the voicing. Beyond that, the record is thin. No period reviews, no measured frequency-response or sensitivity figures, and no surviving owner reports have surfaced.
- Type: 3-way, 3-speaker, bass-reflex bookshelf
- Drivers: 25 cm cone woofer, 13 cm cone midrange, 7.5 cm cone tweeter
- Crossover: 600 Hz, 3 kHz
- Impedance: 4 ohms
- Recommended amplifier: 10W – 150W continuous
- Dimensions: 404 × 648 × 284 mm (W × H × D)
- Weight: 17.3 kg packed
- Finish: Walnut wood-grain vinyl, metalized Mylar baffle
- Price (1979): ¥48,000 per unit
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