The Best Active Speaker

INTRODUCING

QSC KW181 18″ ACTIVE SUBWOOFER

 

KW181

18" Active Subwoofer

 

FEATURES

  • 18” subwoofer
  • Maximum SPL 135 dB peak
  • 1000 watt Class D continuous
    power 
  • Tour-grade 16 gauge steel grilles
  • Rugged, texture-painted birch enclosures
  • Threaded pole socket
  • Speaker mounting pole included (35 mm diameter, 36 inches (91 cm) long, M20 thread.)
  • Comfortable ergonomic handles
ONBOARD MIXER

Onboard mixer with two combo XLR and ¼” inputs, and stereo RCA inputs, (three audio input sources); two direct channel outputs and single summed balanced output

EXTENSIVE DSP
  • Extensive DSP featuring DEEP™ and Intrinsic Correction™ enhances system performance:
    • DMT™ (Directivity Matched Transition) provides for matched LF and HF coverage across the entire listening area, eliminating unnatural "dead" or "hot" frequency zones.
    • Intrinsic Correction™, first featured in our high-end line-array products maps 65–75 spatially-averaged measurements to IIR and FIR filters that actively adjust time, frequency and amplitude response to a maximally flat band pass target. The result is a speaker that behaves equally well across the entire sound field.
    • DEEP™ 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 protects both the amplifier module and your performance from unnatural and destructive clipping.

 

SPECIFICATIONS

KW181

Configuration

18" subwoofer

Transducer

18" cone transducer

Frequency Response (-6 dB)

40 Hz to 112 Hz

Frequency Range (-10 dB)

37 Hz to 129 Hz

Maximum SPL1

135 dB peak

Amplifiers

Power Output2

1000 W Class D continuous 
2000 W peak

Input Impedance

XLR / ¼": 38 kΩ balanced / 19 kΩ 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 to 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) inches

20.1 x 23.4 x 29.9 with casters

Dimensions (HWD) mm

510 × 595 × 761 with casters

Net Weight

83 lb / 37.6 kg

Available Accessories

KW181 cover