QSC KW181
18" Active Subwoofer

OUR PART #:  KW181

Building on the success of the K Series, the KW181 represents the next evolutionary step in wood enclosure loudspeakers.
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Our Price: $1,399.99
List Price: $1,749.00
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QSC KW181
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Building on the success of the K Series, the KW181 represents the next evolutionary step in wood enclosure loudspeakers. QSC's system engineers have created the KW181 Series to feature all the groundbreaking electronic attributes of their popular K Series while at the same time designing a product that is both smaller and significantly lighter than previous wood enclosure models.

High Output
Like K Series, the KW181 model features a QSC designed, 1000 Watt Class D power module.

DSP
Extensive signal processing is employed throughout, providing levels of sonic clarity and total output that defy all expectations for a product in this category:

  • Intrinsic Correction™, first featured in QSC's 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 bandpass 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, first introduced on our GX Series amplifiers protects both the amplifier module and your performance from unnatural and destructive clipping.

Connectivity
The KW181 features a four-position mic / line gain switch that allows for connection of a wide variety of devices. Combo XLR and 1/4" TRS inputs accept both mic and line level input. Up to three audio sources can be mixed internally and summed to a balanced output for ”daisy-chaining” of multiple units. Separate direct outputs are also provided on each channel for additional output flexibility.

Control
On-board switches provide preset EQ settings, with the LF switch able to be set to NORM, DEEP™ for additional bass extension. The rear panel LED switch can be set to POWER, illuminating the front-mounted LED when the unit is powered on, OFF for applications where it is not desirable to illuminate the front LED, or LIMIT which indicates to the system operator that the clip limiter circuit has been engaged during operation.

Remote Gain
Remote gain control capability is offered via a potentiometer (not included) connected to the on-board Phoenix-Style connector. In an installed application, multiple KW Series speakers can be ”daisy-chained” for total gain control from a single remote pot. Auto-standby mode is engaged after 5 minutes of inactivity.

Premium-Grade Materials
The KW181 is designed to withstand the rigors of professional use. Advanced construction processes, premium-grade Baltic birch cabinetry, ergonomic, cast aluminum handles, low-noise casters and a highly protective steel grille provide for ease of transport and long term durability. Additionally, a threaded pole receptacle provides for a positive, wobble free connection to a threaded speaker pole.

QSC KW181 Features:

  • 18” subwoofer
  • Maximum SPL: 135 dB peak
  • 1000 Watt Class D continuous power
  • Extensive DSP featuring DEEP™ and Intrinsic Correction™ enhances system performance
  • Rugged, texture-painted birch enclosure
  • Tour-grade 16 gauge steel grilles
  • Threaded pole socket
  • Speaker mounting pole included (35 mm diameter, 36" (91 cm) long, M20 thread.)
  • Comfortable ergonomic handles

QSC KW181 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 SPL*: 135 dB peak
    • *NOTE:  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.
  • Amplifier:
    • RMS Power Output**: 1000 W Class D continuous
      • **NOTE:  Independent of limiters and driver protection circuits
    • Peak Power Output: 2000 W peak
    • Input Impedance, XLR / 1/4": 38 kohms balanced / 19 kOhms unbalanced
    • Controls:
      • Power
      • Gain
      • LF Mode (Normal/DEEP™)
      • Polarity (Normal/Reverse)
      • Front LED (On/Off/Limit)
    • Indicators:
      • Power
      • Signal
      • Standby
      • Limit
    • Connectors: 
      • Two (2) balanced female XLR / 1/4" line level inputs
      • Two (2) Balanced male XLR full range line level outputs
      • 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 (HxWxD): 20.1" x 23.4" x 29.9" with casters (510 x 595 x 761mm with casters)
    • Weight: 88 lb (40 kg)
    • Available Accessories: KW181 cover (sold separately)
QSC KW181 Cover Padded Cover with Grille Guard
QSC KW181 Cover Padded Cover with Grille Guard
The QSC KW181 Cover is a soft, padded cover with grille guard made with heavy-duty Nylon/Cordura® material for QSC's KW181 18" active subwoofer.
99.99 129.99 23

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On-Stage Stands SS7746 30"- 54" Subwoofer Pole with M20 Thread
On-Stage Stands SS7746 30"- 54" Subwoofer Pole with M20 Thread
More and more pole mount subwoofers are hitting the market with M20 threaded pole mounts instead of the older 1 3/8" socket design. The advantage is obvious: no tilt and wobble! The SS7746 is designed for this new breed of subwoofers. Its ...
21.95 32.99 33

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QSC CH-001035-00 35MM Pole for KW Series
QSC CH-001035-00 35MM Pole for KW Series
  Pole for these QSC loudspeakers:    KW181 KW122 KW152 KW153M20 ThreadDiamter: 35 mmLength: 36 inches (91 cm)   Pole only - loudspeakers not included.
21.00

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QSC CH-001035-00 35MM Pole for KW Series

QSC CH-001035-00 35MM Pole for KW Series

  pole for these qsc loudspeakers:    kw181 kw122 kw152 kw153m20 threaddiamter: 35 mmlength: 36 inches (91 cm)   pole only - loudspeakers not included.
21.00

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QSC MS-000128-30  5 Amp Fuse for KW181

QSC MS-000128-30 5 Amp Fuse for KW181

qsc kw181 subwoofer 5-amp fuse.
1.45

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QSC WP-218102-00 Power PCB for KW181

QSC WP-218102-00 Power PCB for KW181

qsc kw181 subwoofer power circuit board.
253.08

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QSC WP-218104-00 Amp Assembly for KW181

QSC WP-218104-00 Amp Assembly for KW181

qsc kw181 subwoofer amplifier assembly.  serial number is needed to order this amp assembly. please call your sales pro at 800-356-5844 for more information on how to place your order.
480.45

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QSC XD-000005-00 Woofer for KW181

QSC XD-000005-00 Woofer for KW181

woofer for qsc kw181 powered subwoofer.

5.0 / 5

★★★★★ 151.89

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QSC MS-000259-GP  3" Swivel Caster for HPR181, KW181, and KSub

QSC MS-000259-GP 3" Swivel Caster for HPR181, KW181, and KSub

3" swivel caster for these qsc powered subwoofers:  hpr181 kw181 ksub
28.40

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QSC WC-000515-00  Wire Harness for KW181 and KLA181

QSC WC-000515-00 Wire Harness for KW181 and KLA181

wire harness for qsc kw181 and kla181 subwoofers.
9.00

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QSC WP-000393-TS  Grille for KW181

QSC WP-000393-TS Grille for KW181

grille for qsc kw181 subwoofer.
80.16

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QSC CH-000570-GP KW181 Pole Mount

QSC CH-000570-GP KW181 Pole Mount

pole mount for qsc kw181 1000w 18" powered subwoofer.
16.69

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QSC PL-000076-GP  KW181 Handle Cup

QSC PL-000076-GP KW181 Handle Cup

handle cup for the qsc kw181 1000w 18" powered subwoofer.
6.68

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