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Electro Voice : QRX-218S

By: Electro Voice
Pro-audio Products
Contact us for lowest price (800) 284-2288, (858) 565-1101,, or fax (858) 300-4193
Compact Dual 18-inch Subwoofer

The Electro-Voice QRX-218S has become the standard for regional sound companies, rental professionals, and contractors who want compact high-performance loudspeakers with concert-grade EV components. Covered with rugged EVCOAT, QRx looks great stacked, on poles, as monitors, or flown with simple, integrated, L-track rigging points.

Unique, fully-rotable asymmetrical horns have a 15-degree downward bias to ensure high-frequency coverage without the need to tilt the enclosure toward the audience. Our powerhouse DH7 large-format driver (three-inch voice-coil, 1.4-inch exit) provides the high-frequency engine, while a selection of DL and EVX woofers anchor the low and sub frequencies. The combination of high-level components, unique design, and versatility make QRX-218S one of the best values in the industry.


Available Configurations Include:

QRX-218S-BLK 1200 watt dual 18-inch subwoofer with EVX-180B drivers, comes with rear-mounted pocket wheels and 30-inch pole, black
QRX-218S-BLK W/RIG 1200-watt dual 18-inch subwoofer with EVX-180B drivers, flying, black. NOTE: SPECIAL ORDER - please call for manufacturing leadtime

QRX-218S features include:

  • High-level extended LF with concert proven performance
  • Accurate transient detail
  • Available in Standard and Riggable (L-Track) versions
  • EVX-180B woofers for superior linear excursion
  • High sensitivity, 139 db maximum SPL (peak)
  • Power handling: 1200 W continuous, 4800 W peak
  • Rectangular 13-ply birch vented enclosure
  • Built-in handles and sealed pocket wheels (Standard )
  • Integrated pole-mount receptacle (Standard )
  • Black EVCoat finish (white by special order)
Axial Sensitivity (SPL, 1 W @ 1 m) 102 dB
Chassis Size 457.2 mm (18")
Color Black, White, Unfinished
Coverage (Nominal -6 dB) Essentially Omni
Input Connections Parallel Neutrik® NL4
Speaker Type Subs
Frequency Response (-3 dB) 35 - 125 Hz
Frequency Response (-10 dB) 31 - 250 Hz
Internal Crossover No
Recommended High-Pass Frequency 35 Hz 12 dB/octave
Sensitivity 1 W/1 m 102 dB
Max. SPL/1m (calc) 139 dB
System Power Handling (Continuous/Program/Peak) 1200//4800 Watts
LF Transducer (2) EVX180B
Crossover Frequency 100 Hz 24 dB/octave
Nominal Impedance (Passive) 4 Ω
Flying Optional
Outdoor No
Height 1015 mm (39.96")
Width 560 mm (22.05")
Depth 602 mm (23.7")
Weight Net 68 kg (149.91 lbs)
Power handling 1200 W continuous, 4800 W peak


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Prices and specifications subject to change without notice.