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LD Systems DQOR SUB 8 A

Powered Installation Subwoofer with integrated satellite amplification, black

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DQOR

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SKU: LDDQORSUB8A
CATEGORY: Active Subwoofers
BRAND: LD Systems
WARRANTY 1 year
EXPERT SUPPORT Pre and post sale support

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Part of the DQOR® series, the DQOR® SUB 8 A is a powered indoor installation subwoofer with an 8" woofer and a 10" passive radiator. It features two 110 W RMS powered outputs, specifically designed for connecting external full-range loudspeakers. These outputs are fine-tuned by DSP presets to ensure an optimal audio pairing with DQOR® series loudspeakers or any other loudspeaker.

Designed for high performance in a compact form factor, it enables a powerful 2.1 audio system with no need for separate amplifier racks.

The clean and low-profile design ensures the DQOR® SUB 8 A is a sleek addition to any room, combining aesthetics with powerful audio performance. Rated at 250 W RMS, it delivers impressive sound quality at up to 108 dB SPL with low frequency extension down to 37 Hz.

The DQOR® SUB 8 A has rubber feet for floor mounting, or it can be easily installed with the optional surface mount bracket, which includes flexible mounting options, holes for clean cable management, locking screws, a safety-locking mechanism, and a hinge mechanism for quick setup.

Four terminal block connectors allow for balanced stereo input, VCA volume control and remote standby control. Dip switches allow for stereo/mono mode, auto standby mode and DSP preset selection.

The indoor installation subwoofer can be used in a wide variety of applications including hospitality, retail, entertainment or corporate settings.

It is available in two colours: black (RAL9005) and white (RAL9016).

  • 8" Powered Subwoofer with 10" passive radiator
  • Clean, low-profile design with robust aluminium enclosure
  • 220 W subwoofer power
  • 2 × 110 W amplifier to drive passive loudspeakers for a 2.1 system
  • DSP presets for DQOR® loudspeakers or HPF for any loudspeaker
  • Optional Surface Mount bracket (wall + ceiling) with hinges for easy installation

General

DirectivityOmnidirectional
RMS output power250 W
Amp classClass D
SysLink®0
SPL (1 W/1 m)86 dB
Max. SPL peak (sine burst, halfspace/1 m, THD≤10 %)110 dB
Max. SPL peak (pink noise, halfspace/1 m, CF 4)119 dB
Low frequency limit (-3 dB, rel. Avg.)43 Hz
Low frequency limit (-10 dB, rel. Avg.)37 Hz
Crossover frequency200 Hz
Protection featuresUndervoltage, Overvoltage, Overheating, Short circuit, Direct current, Soft-Start
ColourBlack
RAL codeRAL 9005

Inputs

Number of line inputs2
Line-In connector typeTerminal block 3 pin (Euroblock) / 3.81 mm pitch

Line input performance

Nom. Sensitivity (< 1% THD, 1 kHz, max. Gain)0 dBu
Nom. input clipping, balanced (< 1% THD, 1 kHz, unity)19 dBu
Input impedance (balanced)16 kΩ
Min. CMRR (0 dB below clip, 1 kHz, unity)50 dB

Outputs

Output signal typeLoudspeaker
Number of speaker outputs2
Speaker output connection typeTerminal block 4 pin (Euroblock) / 5.08 mm pitch
Min. speaker impedance4 Ω

Signal processing

Mixer0
AD/DA converter bit depth24 Bit
AD/DA converter sampling rate48 kHz
Min. Signal-to-noise ratio (SNR)96 dB
System latency2 ms

Amplifier

Number of satellite outputs2
Satellite output power per channel (RMS)85 W
Sub output power per channel (RMS)165 W
Satellite output power per channel (Peak)110 W
Sub output power per channel (Peak)220 W
Max. THD+N (SAT out, 0 dBu, Volume Center, 1 kHz, 20 kHz BW)0.01 %
Max. THD+N (SUB out, 0 dBu, Volume Center, 63 Hz, 20 kHz BW)0.02 %

External control

GPI controllable functionsStandby
Resistance for volume control (VCA)10 kΩ
VCA input connection typeTerminal block 3 pin (Euroblock) / 3.81 mm pitch
GPI input connection socketTerminal block 2 pin (Euroblock) / 3.81 mm pitch

Bass driver

Size8 "
ManufacturerCustom Made
MagnetFerrite
Voice coil2.5 "
Passive radiator10 "

Mains operation

Operation voltage100 V AC - 240 V AC (±10 %) / 50 - 60 Hz
Power supply typeSwitched-mode power supply (SMPS)
Rated power550 W
Power consumption in idle mode25 W
Max. Stand-by power consumption0.5 W
Inrush current2.7 A
Mains connectorIEC C14 plug male
Mains fuseT6.3AL/250 V

Standby

Auto standby after20 min
Standby wake up time3 s
Wake-up threshold-54 dBFS

Housing

DesignClosed with passive radiator
Cabinet materialDie-cast aluminium, Plastic
Front grille materialAluminium

Cooling

Cooling systemConvection cooling

Environmental

Maximum air humidity (non-condensing)85 %
Safety ClassClass 1

Dimensions & weight

Width537.4 mm
Height304.4 mm
Depth185.6 mm
Weight15.2 kg

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