The HDL 38-AS is the ideal flyable bass complement for the HDL 30-A array system. It features one 4.0” voice coil, 18” Neodymium woofer to handle 136 dB SPL Max from 30 Hz to 140 Hz with the maximum linearity and low distortion. The HDL 38-AS is perfect to create flown systems for theatrical and indoor requirements. The built-in 3200W class-D amplifier delivers excellent playback clarity and up to 136 decibels SPL max. Due to its compatibility with RDNet - remote monitoring and control, the HDL 38-AS is part of the professional HDL System.