Electro-Voice QRx-153/75 Installation and operation manual

QRx-153/75
15-Inch Three-Way Biamped
Speaker System with
Horn-Loaded Midrange
Technical Specifications:
General Description:
The QRx153/75 is a biamped three-way full-range
loudspeaker system capable of filling performance
spaces with beautifully balanced audio and high
acoustic output capability.
The QRx153 is designed to be bi-amplified at 500
Hz utilizing a DX38 digital controller, or a P1202
power amplifier with M153 control module. All QRx
models use 13 ply plywood, Futura coating, and steel
grilles for wear and weather resistance. The
QRx153 is trapezoidal with 15o side angles. “L” track
rigging is installed on the enclosure top and bottom.
Small arrays can be flown for live work, or the
system can be suspended horizontally or vertically
for fixed installations.
Thanks to its combination of the DL15ST woofer
and large enclosure volume; the horn-loaded 8-inch
midrange driver and powerful 3-inch compression
driver, the EV QRx153/75 has extended response
for high-level, high fidelity applications without the
need of a subwoofer. The horn-loaded midrange
driver provides excellent pattern control in this critical
response area. Both MF and HF horns are aimed
downward 10oto provide optimal aiming when the
speaker is elevated above the audience. This also
helps control sound to provide greater intelligibility.
The QRx153/75 has an excellent combination of
performance and flexibility for demanding audiences.
Key Features:
• 8-inch MF horn loaded for 75ox 50opattern
control to 500 Hz.
• 3-inch DH7 HF compression driver.
• 15-inch DL15 woofer is loaded into vented
enclosure.
• Asymmetric MF and HF horns have
+15o / -35ocoverage.
• RMDTM – Ring-Mode Decoupling for vocals
and mids with superb fidelity at any listen-
ing level.
• The EV P1202 Precision Series Amplifier
and M153 module are designed to power
the QRx153 perfectly.
• L-track rigging is installed on top and
bottom of the enclosure.
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Block Diagram:
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: + 1 952 887-9212
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.
12000 Portland Avenue South, Burnsville, MN 55337
Phone: [phone], Fax: [phone]
www.electrovoice.com
© Telex Communications, Inc. 11/2001
Part Number 38110-079 Rev A
Beamwidth:
Frequency Response:
Directivity:
SideFront
Top
Performance Match:
• QRx218s -- Dual 18” Woofer System
• P1202 -- Precision Series™ Amplifier
• M153 -- Control Module for QRx153
• Dx38 -- Digital Loudspeaker Controller
Dimension Drawings: