QSC CS15 Compact Powered Subwoofer With Bluetooth, 15 Inches

QSC CS15 15-Inch Compact Powered Subwoofer

The QSC CS15 powered subwoofer adds low-frequency reinforcement to portable PA systems through a 15-inch driver and 2600 W peak Class D amplification. Bluetooth audio, wireless app control, and onboard presets simplify operation, while its DEEP setting extends bass response and its cardioid preset supports directional setups using multiple units.

Designed for DJs, mobile entertainers, bands, event crews, and houses of worship, this compact active subwoofer fits systems that require transportable bass reinforcement. Choose it for a portable DJ sound system, live band PA expansion, or small venue audio installation. Rear-panel controls provide direct adjustment, and the QSC Loudspeaker Control app lets operators access settings from a phone. The birch plywood cabinet weighs 58.7 pounds.

Two locking combination inputs accept XLR or 1/4-inch connections, while separate loop-through and post-processing outputs support system integration. An M20 threaded socket accommodates compatible speaker poles. Cardioid operation, which concentrates bass toward the audience and reduces rearward radiation, requires at least two subwoofers. QSC provides a six-year warranty when the product is registered within 30 days of purchase.

Key Features

• Integrated Amplification: A 2600 W peak Class D amplifier powers the 15-inch cone driver.
• Extended Bass Preset: DEEP lowers the specified -10 dB frequency limit to 39 Hz.
• Directional Deployment: The cardioid preset supports controlled bass coverage with a minimum of two units.
• Bluetooth Audio: True Wireless Stereo capability supports wireless stereo pairing.
• Remote Adjustment: The QSC Loudspeaker Control app provides wireless access to loudspeaker settings.
• Flexible Routing: Dual combination inputs and dedicated XLR outputs accommodate wired system connections.
• Portable Construction: A painted plywood enclosure, steel grille, and threaded pole socket support mobile use.

Technical Specifications

• Model: CS15
• Configuration: Direct-radiating powered subwoofer
• Low-Frequency Driver: 15-inch cone
• Amplification: Class D, 2600 W peak
• Maximum Rated Sound Pressure Level: 133 dB, measured at 1 meter on-axis using IEC268 pink noise
• Frequency Response (-6 dB): 47-100 Hz; DEEP: 44-100 Hz
• Frequency Range (-10 dB): 43-108 Hz; DEEP: 39-100 Hz
• Radiation Modes: Omnidirectional or cardioid; cardioid requires at least two units
• Wireless Audio: Bluetooth with True Wireless Stereo
• Wireless Control: QSC Loudspeaker Control app
• Cooling: Convection
• Controls: Power switch, gain control, two selection buttons
• Indicators: One power LED, one limiter-active LED, one input-system LED, two signal LEDs
• Inputs: Two locking female XLR/1/4-inch combination connectors
• Outputs: Two male XLR connectors: one loop-through and one post-DSP (digital signal processing)
• Power Connector: IEC
• AC Input: Universal supply, 100-240 VAC, 50/60 Hz
• AC Current Draw: 2.7 A at 100 VAC; 2.2 A at 120 VAC; 1.1 A at 240 VAC, measured at 1/8 power
• Enclosure: Birch plywood, approximately 0.5-0.6 inches thick
• Finish: Black, RAL 9011
• Grille: Black powder-coated 16-gauge steel
• Pole Socket: M20 threaded
• Dimensions (H x W x D): 23.1 x 17.7 x 20.4 inches
• Net Weight: 58.7 pounds
• Shipping Weight: 70.7 pounds
• Regulatory Listings: CE, CB, cTUVus, FCC, NOM, PSE, KCC, BSMI, RCM, RoHS 3.0, WEEE
• Optional Accessories: CS15-CVR, SP-16X, SP-26, SP-36
• Warranty: Six years with registration within 30 days of purchase

What's In the Box

• One CS15 subwoofer in a protective poly bag
• One AC power cord
• Two white QSC logo stickers
• Limited warranty document
• Quick start guide
• Powered loudspeaker safety sheet