Electro-Voice QRx 218S User manual

Key Features:
• Compact, high-output dual 18-inch sub with
concert-proven EVX-180B woofers
• Available in black and by special order in
white or with L-track rigging
• Rear-mounted tilt-back pocket wheels allow
one person to move the system
(not available on rigging version)
• EV comfort-lift handles
• Comes with metal socket and 34-inch pole
for elevating two-way system
(not available on rigging version)
• 13-ply birch plywood enclosure finished in
Futuratm
QRx218S
Dual 18” Subwoofer
Loudspeaker System
General Description:
The QRx-218S is a dedicated subwoofer system that features
the excellent low-frequency capabilities of two powerful EVX-
180B 18-inch drivers with 4-inch voice coils. In the QRx-218S,
these drivers are front-mounted in a compact enclosure that
is tuned to 36 Hz and delivers solid bass fundamentals. The
1,200-watt continuous, 4,800-watt peak power capacity of
the QRx-218S easily provides 133 dB SPL continuous, 139
dB peak output capability at 1 meter. The QRx-218S
enclosure has EV’s recessed comfort-lift handles on the top
and the bottom of the enclosure so the box can be lifted easily.
On the back of the standard versions of the enclosure are
two sealed pocket wheels at the bottom and two handles at
the top of the system so it can be tilted back and moved
comfortably by one person. On the rigging versions of the
QRx-218S, there are two L-tracks on the top and bottom of
the enclosure to allow the system to be hung horizontally or
vertically. The standard versions of the QRx-218S are also
equipped with a metal 1-3/8-inch mounting socket and are
shipped with a 34-inch pole to allow elevation of full-range
speakers above the sub. The QRx-218S enclosure is built of
13-ply, void-free, grain-oriented birch plywood that is coated
with Futura, a sprayed on polyurethane finish that is very
rugged and weather resistant. The drivers are protected from
damage by a 16-gauge powder-coated steel grille with fabric
backing. The enclosure is available in black or white finishes,
with or without the rigging hardware. When paired with a
powerful, high-quality amplifier such as EV’s P1201 Modular
Precision Series or the P3000 Precision Series units, the QRx-
218S can augment the performance of even the finest sound
systems with high levels of extended bass response.
Technical Specifications:
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Block Diagram: Frequency Response:
Dimension Drawings (Standard Model):
Performance Match:
• EV P1202 Modular Precision Amplifier
• M-218S plug-in controller module
• EV P3000 Precision Series Amplifier
• Dx38 Digital sound system controller
• AC-One analog sound system controller
Included Accessories:
• 34-in. Mounting Pole (Not available on Rigging Model)
• (2) Ancra Single-Stud Fittings (Available only on Rigging Model)
QRx218S Part Numbers:
• 301117-001 QRx-218S, black Futura finish
• 301117-002 QRx-218S, white Futura finish
• 301144-001 QRx-218S with rigging, black Futura finish
• 301144-002 QRx-218S with rigging, white Futura finish
12000 Portland Avenue South, Burnsville, MN 55337
Phone:[phone], Fax:[phone]
www.electrovoice.com
© Telex Communications, Inc. 10/2002
Part Number 38109-905 Rev C
U.S.A. and Canada only. For customer orders, contact Customer Service at:
800/392-3497 Fax: [phone]
Europe, Africa, and Middle East only. For customer orders, contact Customer Service at:
+ 49 9421-706 0 Fax: + 49 9421-706 265
Other International locations. For customer orders, contact Customer Service at:
+ 1 952 884-4051 Fax: + 1 952 736-4212
For warranty repair or service information, contact the Service Repair department at:
800/685-2606
For technical assistance, contact Technical Support at: 866/78AUDIO
Specifications subject to change without notice.
Top View
Front View Side View Rear View
Top View
Front View Side View Rear View
Dimension Drawings (Rigging Model):
WARNING: Suspending any object is potentially
dangerous and should only be attempted by
individuals who have a thorough knowledge of the
techniques and regulations of rigging objects
overhead. Electro-Voice®strongly recommends that QRx
speakers be suspended taking into account all current national,
federal, state and local regulations. It is the responsibility of the
installer to ensure that QRx speakers are safely installed in
accordance with all such regulations. If QRx speakers are
suspended, Electro-Voice®strongly recommends that the
system be inspected at least once a year. If any sign of
weakness or damage is detected, remedial action should be
taken immediately.