Maximum Sound Pressure Level 138 dB Low Frequency Limit 32 Hz Transducers LF: 1 x 18" Weight 52 kg / 115 lb Directional Pattern Standard or Cardioid configurations SB18 - L-AcousticsSupport & DownloadsThis equipment benefits from regular updates (software and manuals), so we've compiled all the technical documentation on a single page for greater clarity and responsiveness. 📥 Find the Manuals, Firmware, and Software here: Deelite Technical