JBL Professional JBL IRX115S 15-inch powered subwoofer

The IRX115S extends an IRX rig down to 35 Hz. A 15-inch woofer on a 3-inch voice coil sits in a ported, tuned MDF enclosure with 1,300 W behind it, for 128 dB, and the whole cabinet weighs 65.3 lb.

Crossover points are selectable at 80, 100 or 120 Hz to suit the IRX108BT or IRX112BT above it, and a polarity switch is provided for lining up the system. Connection is two XLR combo inputs and two XLR outputs. A standard pole mount on top takes an IRX top box or another loudspeaker.