The IC 118 BA makes use of a bandpass design to achieve high maximum sound pressure while producing deep low bass well below 40 Hz. Even under maximum load the impulse response accuracy is striking. When used as the system subwoofer of the ICON LTS, the IC 118 BA is controlled entirely by the IC 112 LA mid/high unit. The subwoofer cabinet houses integral electronics that include a latest-generation 2000-watt/4-Ohm Class D power amp which drives the 18"/4-Ohm neodymium subwoofer with ample headroom. With 136 dB maximum SPL (139 dB maximum SPL calculated) over a frequency range from 33 Hz to the cutoff frequency, the subwoofer creates muscular, dynamic bass even under high SPL loads. With a weight of 54 kg, 6 multi-function handles and the included dolly, the subwoofer is easy to handle and load in and out. Via an RJ45 connection with the Internal System Guard, performance data are sent to the upper unit and can then be displayed quickly and easily with the PodWare software on a Windows PC.