Professional Loudspeakers & Mics - Electro-Voice


QRx 115/75

15" passive loudspeaker

  • Compact with high output
  • Ideal for mains (small-to-medium rooms) or monitors
  • Cast-frame woofer, vented cabinet for extended LF
  • 3-inch DH7 titanium HF compression driver
  • Rotatable 75º x 50º Constant-directivity horn
  • Asymmetric 10º down-angled coverage
  • Externally switchable bi-amped or passive operation
  • High sensitivity, 130 db maximum SPL (peak)
  • Power handling: 400 W continuous, 1600 W peak
  • 5-sided 13-ply birch enclosure with monitor slant Built-in handles and L-Track rigging Black or White


Frequency Range (-10 dB) 45 - 16000kHz
Weight Net 70.55lbs (32kg)
Depth 16.02" (407mm)

Width 17.72" (450mm)
Height 29.88" (759mm)
Weatherized No
Flying Yes
Enclosure Material 13-ply birch plywood
Nominal Impedance (Passive)
Crossover Frequency 1500Hz (24 dB/octave)
HF Nominal Impedance
HF Transducer 3-inch DH7
LF Nominal Impedance
HF Power Handling 75Watts
LF Power Handling 400Watts
LF Transducer 15-inch DL15X
System Power Handling (Continuous/Program/Peak) 450//1800Watts
Rotatable Horn Yes
Coverage (Nominal -6 dB) V 50°
Coverage (Nominal -6 dB) H 75°
Max. SPL/1m (calc) 130dB
Sensitivity 1 W/1 m 98dB
Recommended High-Pass Frequency 45Hz (12 dB/octave)
Frequency Response (-3 dB) 60 - 15000Hz
Chassis Size 381 mm
Speaker Type Full-Range, Mid-High, Two-Way, Wedges
Available Color Black or white
Axial Sensitivity (SPL, 1 W @ 1 m) 98dB
Power Rating 1600W
Woofer Size 15inch
Powered or Passive Passive
Family QRx
Input Connections Parallel Neutrik® NL4

Compatible Products


Name Language Size Date
ProSound Loudspeakers and Electronics Catalog EN 15.43MB Apr 2, 2019
QRx Twist & Shout Flyer EN 601KB Dec 26, 2007
Name Size Date
Environmental Compliance Document 148KB Oct 3, 2017
Qrx Series, EC Declaration of Conformity 67KB Nov 13, 2019
Name Size Date
QRx115 CAD Drawing DWG 40KB Dec 26, 2007
Name Size Date
QRx EASE3 ZIP 713KB Jan 24, 2018
Name Language Size Date
QRx-115/75 Engineering Data Sheet EN 137KB Dec 26, 2007
Name Size Date
RACE V3.10 EXE 10.29MB Dec 26, 2007
QRx AcoustaQwik EXE 301KB Dec 26, 2007
QRx Arrayshow EXE 1.07MB Dec 26, 2007
QRx Presets for RACE ZIP 167KB Dec 26, 2007

id-191 product-QRx115 7oc

Name Language Size Date
Warranty conditions for Electro-Voice products in North America EN 160KB Sep 14, 2020
General Terms & Conditions of Deliver for Export Business EN 57KB Nov 26, 2014
Allgemeine Lieferbedingungen DE 184KB Nov 30, 2016
Name Language Size Date
Audio 101 - Basic Audio Terminology EN 2.74MB Dec 13, 2012
Audio 101 - Loudspeaker Basics EN 3.02MB Dec 13, 2012
EASE Data Explanation EN 934KB Nov 17, 2015
PA Bible 02: Power Handling Capacity EN 422KB Dec 26, 2007
PA Bible 06: The Constant Directivity White Horn White Paper EN 465KB Dec 26, 2007
PA Bible 11: Portable Sound Systems for the Small Club EN 470KB Dec 26, 2007
The EV PA Bible EN 1.14MB Dec 26, 2007
The PA Bible Chapter Zero EN 1.14MB Jun 11, 2018

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