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QSC LS218 Dual 18" Direct-Radiating Active Subwoofer With Dante

QSC LS218 Dual 18" Direct-Radiating Active Subwoofer With Dante

SoundPro Item: 207038 | Part Number: LS218

Regular price $4,499.99
Regular price $5,249.99 Sale price $4,499.99
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MSRP: $5,249.99 | MAP: $4,499.99

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  • Acoustic Linear Phase Design Ensures Coherent Integration With QSC Loudspeakers
  • Cardioid Radiation Mode Reduces Rear And Side Low-Frequency Bleed
  • Selectable DEEP Mode Extends Low-Frequency Reach Beyond Standard Operation
  • Dante Networking And QSC SysNav App Enable Full Remote System Control
  • PowerCON TRUE1 Daisy-Chain AC Outlets Simplify Multi-Unit Power Distribution
  • Polyurea-Coated Birch Plywood Enclosure Withstands Touring And Install Demands
  • Six-Year Warranty With Registration Provides Long-Term Deployment Confidence

The QSC LS218 is engineered for production engineers and AV integrators who demand scalable, networked low-frequency reinforcement without sacrificing deployment flexibility. Whether rigged alongside LA108 or LA112 line array systems for touring productions, or configured into fixed installations with Dante-networked signal routing, the LS218 brings intelligent subwoofer management to complex multi-zone and multi-array environments. Its dual direct-radiating transducer configuration and Class D amplification deliver the headroom required for large-venue live events, houses of worship, and permanent installs where consistent coverage across the entire audience plane is non-negotiable.

The LS218 supports both omni-directional and cardioid radiation modes, giving system designers precise control over low-frequency energy distribution — reducing rear and side bleed in constrained venues when two or more units are deployed in cardioid configuration. QSC Acoustic Linear Phase design ensures the LS218 integrates coherently with other QSC loudspeakers in a shared system, simplifying phase alignment that would otherwise require extensive measurement and DSP tuning. DEEP mode extends low-frequency reach further when the application demands it, and daisy-chain connectivity for analog, Dante digital audio, and AC power via PowerCON TRUE1 accelerates multi-unit deployment significantly.

System control is handled through the QSC SysNav app, enabling design, configuration, monitoring, and signal processing for individual units, full arrays, or grouped subwoofer clusters from a single interface. Native Q-SYS Ecosystem integration via Q-SYS Inventory Extensions positions the LS218 within enterprise-scale AV control architectures. A rugged birch plywood enclosure with Polyurea coating and powder-coated steel grille ensures the cabinet withstands the physical demands of touring and permanent outdoor-adjacent installs. The LS218 is available mid-2026 and backed by a six-year warranty when registered within 30 days of purchase.

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Specifications

Certifications
Regulatory
CE, WEEE, UL, China RoHS, RoHS II, FCC Class B
Dimensions
Exterior Height
25.1"
Exterior Width
40.3"
Exterior Depth
27.4"
Carton Height
47.2"
Carton Width
31.5"
Carton Depth
28.5"
Weight
Net Weight
184 lbs
Shipping Weight
213 lbs
Audio
Configuration
Direct radiating, active subwoofer
LF Transducer
(2x) 460 mm (18-inch) cone
Frequency Response (-6 dB)
41 Hz - 98 Hz
Frequency Range (-10 dB)
35 Hz - 111 Hz
Nominal Coverage
Omni-directional or cardioid (cardioid requires min. 2 units)
Maximum SPL (Peak)
141 dB @ 1 m
Electrical
Amplifier Class
Class D
Amplifier Power (Peak)
5000 W
AC Power Input
Universal 100–240 VAC, 50–60 Hz
Cooling
Low noise, variable speed fan
Controls
Main Control
Rotary push encoder
Buttons
2 x Push buttons (Menu, ID)
Display
61 mm (2.4") full color, 240 x 320 pixels
Indicators
Power LED, Limiter active LED, Standby active LED, 2 x Signal LED
Connectivity
Analog Input
XLR Female
Analog Thru
XLR Male
Network
2 x RJ45 EtherCON (Dante and QSC SysNav In/Thru)
AC Power
2 x PowerCON TRUE1 (Inlet/Outlet)
Construction
Enclosure Material
15 mm birch plywood with Polyurea coating
Grille
16 GA powder coated steel
Color
Black (RAL 9011)
Included Items
Included Accessories
1 x PowerCON TRUE1 power cable
Identifiers
Optional Accessories
CASTER KIT-L, SP-16X, SP-26, SP-36, M10 KIT-W, LS-KIT-J

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