Yamaha IL1115 Low Frequency Speaker

IL1115 is the low-frequency partner to the IH2000 mid-high cabinet. It shares the same 610 mm wide, 30-degree trapezoidal Finnish birch enclosure and the same fifteen M10 rigging points, so the two stack into a single flown column with a continuous face and no adapter hardware.

Inside is a 15-inch woofer on a 4-inch voice coil, rated 1,400 W program in tri-amp mode with 97 dB sensitivity and a 45 Hz low corner. The connector panel carries a Neutrik NL8 alongside an NL4 and a barrier strip wired in parallel, which is what lets a single eight-conductor run feed the low, mid, and high sections of a stacked IL1115 and IH2000 pair from one amplifier rack.