QSC AP-4122m - 12" 325W High-Output Installation Loudspeaker




The AcousticPerformance series delivers QSC loudspeaker design philosophies to installations requiring high SPL and full bandwidth performance.  These highly versatile installation loudspeakers maintain their remarkable sonic signature even at high output levels.  AcousticPerformance is perfectly suited for houses of worship, dance clubs, themed entertainment, or other high SPL demanding installations.


  • DMT™ (Directivity Matched Transition) in 2-way models ensures smooth, coherent power response across the listening plane
  • 3” diaphragm compression driver (1.75" on AP-4122m) delivers a clean and powerful high frequency response
  • M10 fittings and yoke mount fittings offer flexible deployment options for a variety of applications
  • Pole cup (AP-5122m and AP-4122m)
  • Two M20 pole attachment points on AP-212sw
  • Clean industrial design with unadorned grilles complement most decors and settings
  • NL4 Speakon connector (two on AP-4122m and AP-212sw) and covered barrier strip terminals (except AP-4122m and AP-212sw)
  • Bi-amp / passive switchable (passive only on AP-4122m), except AP-212sw subwoofer
  • Constructed from 15-ply Baltic birch plywood (15 mm Baltic birch plywood on AP-4122m and AP-212sw)
  • 16-gauge powder coated steel grilles
  • Available in black (RAL 9011) and white (RAL 9010) (black only on AP-4122m and AP-212sw)
  • Complete EASE, CAD & BIM information available online

Frequency response (-10 dB)

55 Hz - 20 kHz

Rated noise power / voltage1

325 watts / 36 volts rms

Broadband sensitivity2

96 dB SPL

Coverage angle

90˚ conical DMT

Directivity factor (Q)


Directivity index (DI)


Recommended crossover


Maximum SPL at 1 m (passive)

121 dB continuous3
127 dB peak4

Rated impedance

HF transducer

45 mm (1.75-inch) voice coil, compression driver

LF transducer

305 mm (12-inch) driver with 64 mm (2.5-inch) voice coil

Optional accessories

AP-YM12M Yoke mount 
M10 Kit-W eye bolt

Enclosure details


Input connector

Two NL4 connectors

Enclosure material

15 mm Baltic birch plywood

Attachment points

Eleven M10 threaded inserts


Black (RAL 9011)


16-gauge powder coated steel

Dimensions (H×W×D)

22.5" × 15.1" × 14.5" / 510 × 385 × 370 mm

Net weight

18.1 kg (39.7 lb)
More Information
SKU QSC-AP-4122m
Freeshipping Free Shipping
UPC (Universal Product Code) 00684284066862
MPN (manufacturer part number) AP-4122M
Condition New
Features N/A
Specs N/A
Producut Video N/A

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