Level up the lows.

The CS18 Compact Powered Subwoofer delivers premium bass and unmatched value in a lightweight, portable design. Combining trusted QSC performance with simple setup, intuitive control, and Bluetooth^® app connectivity via the QSC Loudspeaker Control app, the CS18 is the perfect solution for today’s discriminating subwoofer user.

Key Features

Performance & Power

Single 18-inch driver with energy-efficient Class D amplification module featuring 2600 W of peak power with Universal Power Supply and low AC consumption
DEEP^™ preset for added low frequency extension and impact

Setup & Operation

Simple and intuitive Rear User Interface for quick setup and on-the-go adjustments
Quick Cardioid deployment preset (requires min. 2 subwoofers)

Connectivity & Wireless Control

Bluetooth^® Audio featuring True Wireless Stereo (TWS), which ensures low-latency pairing between music source and both left and right loudspeakers, simultaneously
Wireless control of loudspeaker features with the QSC Loudspeaker Control app
Two XLR inputs with direct pass-thru and assignable output options

Hardware & Durability

Rugged painted wood enclosure for lasting durability
M20 threaded speaker pole mount
6-Year Warranty (when registered within 30 days from purchase)

Loudspeaker Control app

Control your CS18 and all QSC Bluetooth-equipped loudspeakers right from your phone. The Loudspeaker Control app gives you instant access to essential audio controls and advanced capabilities.

CS Deployments

CS18 double stacked with CP12 on pole

CS18 double stacked in cardioid deployment

CS Accessories

CS18 Cover
Nylon fabric and mesh cover for CS Series powered subwoofers

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Loudspeaker Pole (26-inch)
26-inch (660 mm) long, 35 mm diameter, loudspeaker pole with male M20 thread.

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Loudspeaker Pole (36-inch)
36-inch (914 mm) long, 35 mm diameter, loudspeaker pole with male M20 thread.

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Resources

Model	CS18
Configuration:	Direct Radiating
LF Transducer:	460 mm (18-inch), cone
Frequency Response (-6 dB):	46 Hz - 96 Hz DEEP: 39 Hz - 96 Hz
Frequency Range (-10 dB):	40 Hz - 103 Hz DEEP: 35 Hz - 103 Hz
Nominal Coverage Angle:	Omni-Directional or Cardioid Radiation Modes (Cardioid Setup Requires min. 2 Units)
Maximum Rated SPL¹:	134 dB
Amplification (peak):	Class D, 2600 W
Cooling:	Convection cooling
Controls:	Power On/Off Gain Control 2 x Selection Buttons
Indicators:	1 x Power LED 1 x Limiter Active LED 1 x Input System LED 2 x Signal LED
Connectors:	2 × locking XLR/F ¼ inch combo 2 × XLR/M (1 x Loop-Thru Output, 1 x Post-DSP Output) 1 × IEC Power Connector
AC Power Input:	Universal Power Supply: 100-240 VAC, 50/60 Hz
AC Power Consumption²:	100 VAC, 2.7 A / 120 VAC, 2.2 A / 240 VAC, 1.1 A, 50/60 Hz
Enclosure Material:	12-15 mm Birch Plywood
Color:	Black (RAL 9011)
Grille:	Powder-coated steel, black (16 Gauge)
Loudspeaker Dimensions (H×W×D):	640 x 513 x 658 mm / 25.2 x 20.2 x 25.9 in
Net Weight:	37.6 kg / 82.9 lb
Shipping Weight:	44.6 kg / 98.3 lb
Regulatory:	CE, CB, cTUVus, FCC, NOM, PSE, KCC, BSMI, RCM, RoHS 3.0, CA65, WEEE, etc.
Optional Accessories:	CASTER KIT-S CS18-CVR SP-16X SP-26 SP-36

¹Measured at 1 meter, on-axis, using IEC268 Pink Noise.
²1/8 power is representative of current draw with typical music program material with occasional clipping.
The Bluetooth® word mark and logos are registered trademarks owned by Bluetooth SIG, Inc.
All specifications are subject to change without notice.

California Prop 65 Information

WARNING: This product can expose you to chemicals including lead, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65warnings.ca.gov.