JBL 5672
The JBL 5672 is an in-wall/in-ceiling loudspeaker from JBL's Control Contractor Series, aimed at both residential and commercial background music and sound applications. It's a two-way system built around an 8" polypropylene-coated fiber woofer and a 1" titanium-coated polyester dome tweeter, with a crossover at 3.5 kHz. The speaker uses JBL's SonicGuide™ waveguide and a one-piece, mineral-filled baffle, and the grille is paintable. A tile bridge is included for drop-ceiling installations, and 70V/100V operation is possible via an optional transformer sold separately.
The known specs, from a vendor product page: frequency response of 55 Hz–21 kHz (±3 dB), sensitivity of 90 dB (1W/1m), nominal impedance of 8 ohms, and power handling rated at 75 watts continuous pink noise / 225 watts peak. Dimensions are 406 × 279 × 97 mm (16.0" × 11.0" × 3.8"), with a cutout of 364 × 239 mm (14.3" × 9.4") and 89 mm (3.5") mounting depth. Each unit ships at 4.3 kg (9.5 lbs). The 75W continuous figure is corroborated by a second source.
No production years, introduction date, or original price have surfaced in the available record. The documentation that exists is thin — mostly vendor listings and an aggregator page. One blog post critiquing a spec-aggregator page for the 5672 called it "the most bare-bones spec sheet I have ever seen," though that criticism was aimed at the spec page itself, not the speaker. A period review in Mix Magazine (July 1984, p.160) noted the speaker's suitability for private ownership and school/studio installations.
- Type: 2-way in-wall/in-ceiling, Control Contractor Series
- Drivers: 200 mm (8") polypropylene-coated fiber woofer; 25 mm (1") titanium-coated polyester dome tweeter
- Crossover: 3.5 kHz
- Frequency response: 55 Hz – 21 kHz (±3 dB)
- Sensitivity: 90 dB (1W/1m)
- Impedance: 8 ohms
- Power handling: 75 W continuous pink noise / 225 W peak
- Dimensions (H×W×D): 406 × 279 × 97 mm; cutout 364 × 239 mm; mounting depth 89 mm
- Weight: 4.3 kg (9.5 lbs) each
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