QSC LS218 Powered Dual 18-Inch Subwoofer
The QSC LS218 is a next-generation, intelligent active subwoofer designed for demanding live sound, fixed installation, mobile entertainment, and AV production applications. Featuring two 18-inch long-excursion drivers and a 5,000W peak Class D amplifier, the LS218 delivers very high SPL output and powerful low-frequency performance in an easy-to-deploy enclosure.
Key Features
- Dual 18-Inch Long-Excursion Drivers
- 5,000W Peak Class D Amplifier
- 141 dB Peak SPL Output
- Dante & QSC SysNav Networking
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This training helps us provide knowledgeable product guidance when customers are selecting and deploying Q-SYS solutions. When you purchase Q-SYS products from HDTV Supply, you are working with a team that understands the Q-SYS platform and can help you make informed product and system decisions.
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Specifications
| Model | LS218 |
|---|---|
| Product Type | Powered Dual 18-Inch Subwoofer |
| Configuration | Direct Radiating, Active Subwoofer |
| LF Transducers | 2 × 460 mm (18-Inch) Long-Excursion Cone Drivers |
| Frequency Response (-6 dB) | 35–98 Hz; DEEP™ 32–98 Hz |
| Frequency Range (-10 dB) | 33–111 Hz; DEEP™ 29–111 Hz |
| Coverage | Omni-Directional or Cardioid Radiation Modes |
| Cardioid Configuration | Minimum 2 LS218 Units Required |
| Maximum Rated SPL | 141 dB @ 1 m Peak |
| Amplifier | Class D, 5,000W Peak |
| Amplifier Technology | Power Factor Correction |
| Cooling | Low-Noise Variable-Speed Fan |
| Controls | Rotary Push Encoder; 2 Push Buttons for Menu and ID |
| Display | 2.4-Inch Full-Color Display, 240 × 320 Pixels |
| Analog Input | XLR Female |
| Analog Thru | XLR Male |
| Network Connections | 2 × RJ45 EtherCON for Dante® and QSC SysNav™ In/Thru |
| AC Connections | 2 × PowerCON TRUE1 AC Power Inlet/Outlet |
| AC Input | 100–240 VAC, 50–60 Hz Universal Power Supply |
| AC Power Consumption | 100–240V @ 3.7–1.8A, 50/60 Hz |
| Enclosure Material | 15 mm Birch Plywood with Polyurea Coating |
| Grille | 16 GA Powder-Coated Steel |
| Color | Black (RAL 9011) |
| Dimensions Without Casters | 25.1 × 40.3 × 27.4 in (638 × 1023 × 696 mm) |
| Carton Dimensions | 47.2 × 31.5 × 28.5 in (1200 × 800 × 724 mm) |
| Net Weight | 184 lb (83.5 kg) |
| Shipping Weight | 213 lb (96.6 kg) |
| Included Accessory | 1 × PowerCON TRUE1 Power Cable |
| Compatible Line Arrays | QSC LA108 and LA112 |
| Deployment | Vertical or Horizontal |
Manuals
QSC L Class LS118 and LS218 Active Subwoofer User Manual
Download the QSC L Class User Manual (PDF)
QSC LS218 Specification Sheet
Download the QSC LS218 Specification Sheet (PDF)
QSC LS218 Official Product Documentation
View the Official QSC LS218 Product Page
Access additional manufacturer documentation, technical resources, and downloads.
What is the QSC LS218?
A: The QSC LS218 is a powered dual 18-inch active subwoofer in the QSC L Class system.
How many speakers are inside the LS218?
A: The LS218 contains two 18-inch (460 mm) long-excursion direct-radiating low-frequency drivers.
How much power does the LS218 have?
A: The LS218 uses a 5,000W peak Class D amplifier module with Power Factor Correction.
What is the maximum SPL of the LS218?
A: The LS218 has a maximum rated peak SPL of 141 dB at 1 meter.
Does the LS218 support cardioid operation?
A: Yes. The LS218 supports omni-directional and cardioid radiation modes. A cardioid setup requires a minimum of two LS218 units.
What is the frequency response of the LS218?
A: The frequency response is 35–98 Hz at -6 dB, or 32–98 Hz when DEEP™ mode is enabled.
Does the LS218 have Dante?
A: Yes. The LS218 provides RJ45 EtherCON connections for Dante® networked digital audio.
What is QSC SysNav?
A: QSC SysNav™ is the System Navigator App used to design, configure, control, monitor, and apply signal processing to QSC L Class loudspeakers and arrays.
Can the LS218 be used with LA108 or LA112 loudspeakers?
A: Yes. QSC specifies the LS218 for use with LA108 and LA112 active line array loudspeakers.
Can the LS218 be deployed vertically or horizontally?
A: Yes. The LS218 supports vertical and horizontal deployments using its M20 threaded pole receivers and compatible array or stack accessories.
Is the QSC LS218 suitable for professional live sound?
A: Yes. QSC designed the LS218 for applications including live venues, fixed installations, mobile entertainment, and AV rental/event productions.
What is the QSC LS218 shipping weight?
A: The manufacturer lists the LS218 shipping weight as 213 lb (96.6 kg).
Does the LS218 have a DEEP mode?
A: Yes. Selectable DEEP™ mode extends the LS218's low-frequency performance down to 29 Hz at -10 dB and 32 Hz at -6 dB.
What type of amplifier is used in the LS218?
A: The LS218 uses an energy-efficient Class D amplifier with 5,000W peak output and Power Factor Correction.
What warranty does the QSC LS218 have?
A: QSC provides a 6-year warranty when the LS218 is registered within 30 days of purchase.
Why not buy this QSC LS218 Powered Dual 18-Inch Subwoofer today?
Warranty
The QSC LS218 is backed by a 6-year warranty when registered within 30 days of purchase. Warranty coverage is subject to QSC's current warranty terms and conditions.
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