JBL ASB4128 Dual 18-inch Subwoofer

The ASB4128 is a dual 18-inch subwoofer, part of JBL's AE Series installed range. The low-frequency section uses 2 x JBL 2042H 460 mm (18 in) drivers with 75 mm (3 in) voice coil. Frequency range is 30 Hz - 1 kHz. JBL rates it at 600 W (2400 W peak), 100 hrs. Maximum SPL at 1 m is 30 Hz - 100 Hz: 133 dB-SPL cont avg (139 dB peak)100 Hz - 500 Hz: 133 dB-SPL cont avg (139 dB peak). Nominal impedance is 4 ohms in parallel-drive mode 2 x 8 ohms in discrete-drive mode.

The enclosure is Rectangular cabinet, 16 mm (5/8 in) exterior grade 11-ply Finnish birch plywood. Rigging: 12 points (3 top, 3 bottom, 3 each side, 2 rear), M10 threaded hardware. Environmental rating: Mil-Std 810; IP-x3 per IEC529. Net weight is 143 lbs. (64.9 kgs). Ordering covers Black and White; pick the one you need above and the SKU and price follow your choice.