LD Systems DDQ SUB18 active PAsubwoofer

LD Systems DDQ SUB 18 Active PA Subwoofer with DSP

The LD Systems DDQ SUB 18 is a powerful active PA subwoofer with advanced digital signal processing (DSP), designed for demanding live sound applications. It delivers deep, distortion-free bass with exceptional clarity and power, optimised for use with DDQ Series full-range speakers or compatible tops from other manufacturers.

Key Features

• 18" FaitalPRO bass speaker with 4" voice coil and neodymium magnet
• Two 700-watt Hypex Class D amplifiers (total 1400 watts RMS)
• Maximum sound pressure level (SPL) of 134 dB peak
• Frequency response range: 30 - 120 Hz
• Sharc DSP with 1ms look-ahead limiter, frequency & phase correction, and full protection circuits
• 15 DSP presets including 7 selectable crossover frequencies (80-120 Hz) and 4 cardioid setups for 2 or 3 subwoofers with up to 20 dB rear attenuation
• Multiple XLR inputs and outputs, including mono output with 100 Hz high-pass filter
• Durable 18mm plywood cabinet with polyurethane finish, ergonomic handles, M20 threaded flanges, and caster mounting preparation
• Volume and preset controls can be locked to prevent accidental changes

Specifications

• Product number: LDDDQSUB18
• Product type: PA subwoofer
• Type: Active, DSP controlled
• Low/mid driver size: 18" (457.2 mm)
• Woofer brand: FaitalPRO
• Woofer voice coil: 4" (101.6 mm)
• Woofer magnet: Neodymium
• Amplifier: Class D (2 x 700 W, total 1400 W RMS)
• Frequency response: 30 - 120 Hz
• Max SPL (continuous): 126 dB
• Max SPL (peak): 134 dB
• Protection circuits: RMS speaker limiter, DSP-based look-ahead limiter, short circuit, RMS power supply limiter, over-current protection
• Controls: Power, DSP/Gain enable, ground lift, gain, DSP presets
• Display indicators: Operate, DSP/Gain disable, peak limit, signal
• Line inputs: 2 x XLR
• Line outputs: 3 x XLR (2 x Input Link, 1 x Sat Out with 100 Hz high-pass filter)
• Operating voltage: Switching power supply, 180 - 264 V ~ / 47 - 63 Hz
• Cabinet material: 18 mm plywood with polyurethane finish
• Cabinet design: Vented bass reflex
• Dimensions (W x H x D): 510 mm x 700 mm x 725 mm
• Weight: 44.5 kg
• Additional features: 3 corner handles, 2 x M20 threaded flanges, caster mounting preparation, 15 DSP presets with cardioid and crossover options