LD Systems LDDDQSUB18 – 18″ ACTIVE PA SUBWOOFER 1400 watt with DSP EOL-DEMO

The LD Systems DDQ Sub 18 is a powerful active subwoofer with digital signal processing for demanding PA applications. It is precisely adapted for combination with the full-range speakers of the DDQ Series and is equally suitable for use with tops made by other manufacturers.

The compact bass-reflex design is loaded with an 18" FaitalPRO bass speaker that has a 4" voice coil and a neodymium magnet driven by two 700-watt Hypex Class D power amplifier modules with a highly efficient switching power supply with a total output of 1400 watts RMS. The DDQ Sub 18 attains a maximum sound-level pressure of 134 dB with a frequency response curve of 30 -120 Hz.

The Sharc DSP programmed especially for the DDQ subwoofers ensures distortion-free and reliable operation even at maximum volume levels with a 1ms look ahead limiter, frequency and phase correction, as well as all protection circuits, and has a large dynamic range of 127dB/113 dB (ADC/DAC). Seven DSP Presets permit selectable crossover frequencies between 80 and 120Hz. Eight additional presets make it possible to realize cardioid configurations of 2 or 3 subwoofers, whereby it is possible to attain rear attenuation of up to 20dB. In addition to XLR inputs and outputs, the DDQ Sub 18 has a separate mono output with a 100Hz high-pass filter. Additional features are LED function indicators and a ground lift switch; the volume and preset controls can be deactivated to prevent inadvertent adjustment.

• Type: active
• Version: DSP-controlled
• Woofer size: 18“
• Woofer size: 457.2 mm
• Woofer magnet: neodymium
• Woofer brand: Faital Pro
• Woofer voice coil: 4 "
• Woofer voice coil: 76.5 mm
• Amplifier: Class D
• Power output (RMS): 2 x 700 W
• Frequency response: 30 Hz - 120 Hz
• Max. SPL (continuous): 126 dB
• Max. SPL (peak): 134 dB
• Protection: DSP-based "look ahead" limiter, RMS speaker limiter, RMS power supply limiter, short circuit, overvoltage
• Controls: Gain dB, DSP Preset, Ground Lift, DSP/Gain enable, Power
• Indicators: DSP/ Gain disable, Peak Limit, Signal, Operate
• Line inputs: 2
• Line input connectors: XLR
• Line outputs: 3 (2x Input Link, 1x Sat Out with 100Hz high-pass)
• Line output connectors: XLR
• Power supply: switching power supply
• Operating voltage: 180-264V ~ / 47-63 Hz
• Cabinet material: 18 mm plywood
• Cabinet surface: polyurethane
• Cabinet type: bass reflex
• Width: 510 mm
• Height: 700 mm
• Depth: 725 mm
• Features: 15 x DSP presets with 4 selectable cardioid setups and 7 selectable crossover frequencies (80-120Hz),  2 x threaded flange (M20), 3 x corner handles, prepared for mounting of casters

SPECIFICATIONS    


Configuration     18" subwoofer
Transducer
    18" cone transducer
Frequency Response (-6 dB)     38 Hz - 124 Hz
Frequency Range (-10 dB)     34 Hz - 143 Hz
Maximum SPL1     135 dB peak
Amplifiers
Power Output2     1000 W Class D continuous
2000 W peak
Input Impedance (ohms)     XLR / ¼“: 38k balanced / 19k unbalanced
Controls     Power, Gain, LF Mode (Normal/DEEP™), Polarity (Normal/Reverse), Front LED (On/Off/Limit)
Indicators     Power, Signal, Standby, Limit
Connectors     Dual balanced female XLR/¼" line level input, Dual Balanced male XLR full range line level out, Remote gain control, Locking IEC power connector
Cooling     On demand, 50 mm variable speed fan
Amplifier Protection     Thermal limiting, output overcurrent, overtemperature muting, GuardRail™
Transducer Protection     Thermal limiting, excursion limiting
AC Power Input     Universal power supply 100 - 240 VAC, 50 - 60 Hz
AC Power Consumption
(1/8 Power)     100 VAC, 2.3 A
120 VAC, 2.01 A
230 VAC, 1.13 A
Enclosure
Material     15 mm painted birch plywood
Finish     Black textured paint
Grille     Rugged Powder-Coated Steel Grille
Dimensions (HWD)     20.1" x 23.4" x 29.9" with casters
510 mm x 595 mm x 761 mm with casters
Weight (Net)     88 lb (40 kg)
Available Accessories     KW181 COVER


1 For comparison purposes and in accordance with common industry practice, maximum peak SPL specifications are theoretical calculations based upon transducer sensitivity and peak available amplifier power.

2 Independent of limiters and driver protection circuits.

• 2200 W
• 135 dB max SPL
• 35 Hz - 120 Hz frequency response
• 18" Woofer, 4.0" v.c.
• Total Power: 2200 W Peak, 1100 W RMS
• Selectable gain, X-over and delay
• Birch tour grade cabinet
• Stereo XLR input, Stereo XLR signal output

The DSR118W is a compact and high power active subwoofer system that extends the bass of the DSR full range speaker system to below 40Hz. With a high efficiency, low distortion 800W Class-D amplifier and a long travel, cast frame 18" woofer, the DSR118W achieves maximum peak SPL of 132dB. It also features a 35mm pole socket on the top, making it easy to set up a high performance sub/mid-high system.

• All-new 800W Class-D amplifier with PFC switching mode power supply
• Maximum SPL 132dB peak
• Extensive protection of the transducers, amplifiers and power supply
• Premium-grade, custom designed transducers
• Low-frequency extension down to 40Hz
• Compact and lightweight (42kg/ 93lbs)
• Bass-reflex, direct-radiating design
• Top panel pole mount for satelite configuration
• Heavy-duty 16-gauge (1.6mm) steel grille
• Locking IEC cable

Powered 18 flying subwoofer, 2268H Differential Drive LF, Crown DPC-2 amplifier module with system DSP; integral rigging hardware compatible with VRX932LAP; top mounted M20 threaded pole socket; black DuraFlex finish