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Electro-Voice QRX 153/75

15ǃ_, three-way, full-range bi-amp loudspeaker system.


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Product Description for the Electro-Voice QRX 153/75

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 15° 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 10° to 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.


  • Designed for Club Sound, Concert Sound, House of Worship, Pro Music, and other applications.
  • Three-way, high-output, full-range loudspeaker
  • Biamp only
  • Solid bass to 42 Hz (-10dB)
  • Vented LF enclosure
  • Asymmetrical CD horn aimed downward by 10°
  • 3” HF voice coil (titanium diaphram)
  • Protection circuit for HF driver
  • Trapezoidal cabinet (15° per side) for tightpack situations
  • Comes with L-track hardware and single-stud ancra fittings
Chassis Size381 mm (15")
Input ConnectionsParallel Neutrik® NL4
Speaker TypeFullrange
Speaker TypeMid-High
Speaker TypeThree-Way
Frequency Response (-3 dB)43 - 18 Hz
Frequency Response (-10 dB)42 - 20 Hz
Internal CrossoverYes
Max. SPL/1m (calc)130 dB
(Nominal -6 dB) H°
75 °
(Nominal -6 dB) V°
50 °
Rotatable HornNo
LF TransducerDL15X
Low Frequency Power Handling (Continuous/Program/Peak)400 Watts
LF Nominal Impedance8 Ω
Mid/High Frequency Power Handling (Continuous/Program/Peak)150 Watts
MF TransducerMF8 8-inch MF
HF TransducerDH7 3-inch HF
Height1240 mm (48.82")
Width467 mm (18.39")
Depth485 mm (19.09")
Weight Net47 kg (103.62 lbs)
Brand EV
Weight 105.0000
Dimensions (WxHxD) No

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Electro-Voice QRX 153/75


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