JBL Control 12SR
Little is documented about the JBL Control 12SR beyond its listing in JBL Professional's own product materials. It was a compact, two-way indoor/outdoor satellite speaker in JBL's Control Contractor Series. Period trade ads pitched that line as the "small monitor" making a "big difference" in recording environments, though the 12SR itself was aimed more at installed sound than studio use. Recording Engineer (April 1990, p.72) ran JBL's Control Series advertising touting the power handling and imaging of the smaller Control 5. No period review of the 12SR specifically has surfaced.
The spec sheet shows a 165 mm (6.5 in) woofer paired with a 25 mm (1 in) titanium-laminate dome tweeter, crossed over at 2.8 kHz, in a ported enclosure. Sensitivity is rated at 88 dB (1 W/1 m) and nominal impedance is 8 ohms. It handles 100 W continuous pink noise, 200 W program, 400 W peak. Maximum SPL is listed at 111 dB continuous and 117 dB peak. The most distinctive feature is the built-in 70V/100V transformer with selectable taps (60W, 30W, 15W, 7.5W) plus a direct/bypass switch. That points to distributed audio systems as much as home use. Neodymium magnets keep the drivers light, and the removable locking connector with screw terminals (parallel in/out) suits daisy-chaining in commercial installs.
No production years, original price, or subjective reviews have been found in any source. The only substantive record is JBL Professional's own product page, so the specs above are uncorroborated by independent testing. Known dimensions: 358 × 224 × 218 mm (14.1 × 8.8 × 8.6 in), 5.0 kg (11 lb).
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