QSC KW181 Sub


SKU: QSCKW181 Categories: , Tag:

QSC KW181 Powered Subwoofer

Premium-grade materials: KW Series is designed to withstand the rigors of professional use. Advanced construction processes, premium-grade Baltic birch cabinetry, ergonomic, cast aluminum handles, low-noise casters (KW181) and a highly protective steel grille provide for ease of transport and long term durability. Integrated M10 suspension points allow for flown applications with a KW M10 KIT (sold separately) and a threaded pole receptacle (KW181) provides for a positive, wobble free connection to a threaded speaker pole (included).

Configuration18″ subwoofer
Transducer18″ cone transducer
Frequency Response (-6 dB)38 Hz – 124 Hz
Frequency Range (-10 dB)34 Hz – 143 Hz
Maximum SPL1135 dB peak
Power Output21000 W Class D continuous
2000 W peak
Input Impedance (ohms)XLR / ¼”: 38k balanced / 19k unbalanced
ControlsPower, Gain, LF Mode (Normal/DEEP™), Polarity (Normal/Reverse), Front LED (On/Off/Limit)
IndicatorsPower, Signal, Standby, Limit
ConnectorsDual balanced female XLR/¼” line level input, Dual Balanced male XLR full range line level out, Remote gain control, Locking IEC power connector
CoolingOn demand, 50 mm variable speed fan
Amplifier ProtectionThermal limiting, output overcurrent, overtemperature muting, GuardRail™
Transducer ProtectionThermal limiting, excursion limiting
AC Power InputUniversal 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
Material15 mm painted birch plywood
FinishBlack textured paint
GrilleBlack powder coated 16 gauge steel
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 AccessoriesKW181 COVER

Weight83 lbs
Dimensions22 x 25 x 31 in


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