JBL Pro JRX212 12" 1000 Watt Professional Passive PA/DJ Speaker 8 Ohm JRX 212

The JBL JRX212 is a passive 12-inch two-way loudspeaker for bands, DJs and rental stock that runs on an outboard amplifier. It handles 250W RMS and 1,000W peak at 8 ohms, reaching 128 dB max SPL with 98 dB sensitivity, and covers 60 Hz to 20 kHz in a 90 by 50 degree pattern.

High sensitivity is the practical story here. At 98 dB, the cabinet gets loud on modest amplifier power, so a 250W to 500W per channel amplifier drives it to full output without strain.

The low-frequency driver is a JBL M112-8 with a 64 mm edge-wound ribbon voice coil, matched to a JBL 2414H-C 1-inch polymer diaphragm compression driver on a Progressive Transition waveguide for consistent coverage across the pattern. The crossover uses high-voltage capacitors and inductors with heavy gauge wire, and SonicGuard protects the compression driver from excess power without cutting the show short.

The enclosure is 19 mm MDF with non-resonant all-steel handles and an 18-gauge hexagon perforated steel grille. A dual-angle pole-mount socket lets the cabinet tilt 10 degrees when stand mounted. Input is a Neutrik Speakon NL-4 plus a parallel 1/4-inch TS jack. Weight is 43 lb.