QSC KW181 1000W 18" Active Subwoofer
Product #41831 | SKU KW181
Usually ships in 4 - 6 Weeks
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QSC KW181 1000W 18" Active Subwoofer

Product #41831 | SKU KW181
Usually ships in 4 - 6 Weeks


18" Woofer, 1000W Class-D Amplifier, Phoenix Remote Connector
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Product Details
  • Product: #41831
  • SKU: KW181

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Overview

The KW181 from QSC is a professional-quality active 3-way PA loudspeaker. Ideal for low frequency reinforcement of KW-series loudspeakers, the lightweight and rugged birch cabinet houses an 18" woofer to deliver deep, thumping bass with frequencies as low as 35Hz. An efficient Class-D amplifier provides an output power of 1000W for strong audio with low distortion.

The sub offers excellent connectivity, with XLR/TRS combo inputs that accept mic or line signals. Direct XLR line outputs are provided for each channel. Extensive internal DSP includes Intrinsic Correction, DEEP, and GuardRail technologies to provide terrific sonic clarity and component protection for reliable operation.

Onboard control options allow you to adjust AEQ to perfectly match your surroundings and applications. You can also use the rear-panel Phoenix connector to connect an external potentiometer (not included) for remote gain control. The sub has a standard 35mm pole socket and a threaded pole for securely mounting a loudspeaker on top of the subwoofer. It also has ergonomic cast-aluminium handles and low-noise casters for easy transport.

Key Features

  • Ideal for low frequency reinforcement of KW-series loudspeakers
  • Lightweight and durable texture-painted birch cabinet with road-worthy 16-gauge steel grille
  • An 18" woofer delivers deep, thumping bass with frequencies as low as 35Hz
  • An efficient Class-D amplifier provides an output power of 1000W for strong audio with low distortion
  • XLR/TRS combo inputs accept mic and line level signals. Direct XLR line outputs are provided for each channel
  • Intrinsic Correction maps 65-75 spatially-averaged measurements to IIR and FIR filters that actively adjust time, frequency and amplitude response to a maximally flat bandpass target, for excellent performance across the entire sound field
  • DEEP technology and excursion limiting allow for extended low-frequency response by actively managing low-frequency transients without degradation of the underlying signal or adjacent frequencies
  • GuardRail protection technology protects both the amplifier module and your performance from unnatural and destructive clipping
  • Multiple AEQ modes let you optimise the sub's output for specific applications with the flip of a switch
  • The onboard LED indicator can be set to illuminate when power is on, to only illuminate when the clip limiter circuit is engaged, or to always be off
  • The rear-panel Phoenix connector allows you to connect an external potentiometer (not included) for remote gain control. You can even control multiple daisy-chained units from a single control pot
  • The sub has a standard 35mm pole socket and a threaded pole for securely mounting a loudspeaker on top of the subwoofer
  • Ergonomic cast-aluminium handles and low-noise casters for easy transport
  • A locking power cable prevents accidental disconnection, while an automatic standby mode conserves energy and extends the life of the subwoofer

Specifications

Active or Passive Active
Frequency Response 40-112Hz (-6dB)
35-129Hz (-10dB)
Amplifier Class-D, 1000W Continuous, 2000W Peak
Maximum Sound Pressure Level (SPL) 135dB, Peak
Nominal Sensitivity Not Specified by Manufacturer
Input Impedance 38 kOhms Balanced, 19 kOhms Unbalanced
Crossover Not Specified by Manufacturer
Low Frequency Driver 18" Cone Woofer
Enclosure Material 15mm Birch Plywood, Black Textured Paint Finish, Black Powder Coated 16-Gauge Steel Grille
Controls Power
Gain
LF Mode (Norm/DEEP)
Polarity (Normal/Reverse)
Front LED (On/Off/Limit)
Connectors 2 x XLR/TRS Mic/Line Combo Inputs
2 x XLR Line Outputs
1 x Phoenix Remote Connector
1 x Locking Power Connector
Indicators Power
Signal
Standby
Limit
Cooling On Demand, 50mm Variable Speed Fan
Protection Amplifier: Thermal Limiting, Output Overcurrent, Overtemperature Muting, GuardRail
Transducer: Thermal Limiting, Excursion Limiting
Power 100-240VAC, 50/60Hz Universal Power Supply
Consumption 100VAC, 2.3A
120VAC, 2.01A
230VAC, 1.13A
Dimensions (HxWxD) 20.1 x 23.4 x 29.9" (510 x 595 x 761mm) (With Casters)
Weight 88 lbs (40kg)

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Details
  • Product: QSC KW181 1000W 18" Active Subwoofer
  • Manufacturer: QSC
  • Model: KW181
  • SKU: KW181
  • RM Product #: 41831