The AP-4122m from QSC is a two-way loudspeaker made for surface-mount installation applications. It’s ideal for sound reinforcement scenarios that need high power and wide coverage in a low-profile build. Its 12-inch woofer with a 2.5-inch voice coil and a coaxially mounted high-power capacity, along with a 1.75-inch voice coil compression driver, equips the AP-4122m to deliver exceptional full bandwidth reproduction.
More about QSC’s AcousticPerformance Series
Add seamless sound to your professional space with QSC’s versatile AcousticPerformance™ (AP) Series of two-way, full-range loudspeakers. These wall-mountable speakers are great for applications that need a permanent sound solution, such as hospitality venues, entertainment spaces, smaller live stages, restaurants, retail stores, classrooms, offices, houses of worship, boardrooms, and more. AP series loudspeakers come in black or white finish options.
AP speakers incorporate Directivity Matched Transition (DMT™), which uses a precision-engineered compression driver waveguide that matches its coverage angle with that of the woofer at the crossover transition. The axisymmetric waveguide delivers uncompromised performance in both the vertical and horizontal axes, resulting in consistent coverage, flat power response, natural frequency response, and faithful reproduction on- and off-axis.
Permanent installation—flexible features. Use AP models as passive loudspeakers to minimize amplifier channel count, or bi-amp them for more precision control and enhanced performance. QSC Intrinsic Correction techniques are available for Q-Sys and future QSC products. Mount the speaker on a wall or other flat surface or use the incorporated M10 mounting points to suspend it via eyebolts. Mounting points are also incorporated for a yoke bracket (sold separately) for even more versatile installation options. The speakers’ clean, compact build makes them an unobtrusive addition to your space.
QSC AP-4122m Features
- Directivity Matched Transition® (DMT) 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
- QSC AP-4122m 12-Inch Surface Mount Install Speaker1
- Frequency response (-10 dB)55 Hz - 20 kHz
- Rated noise power / voltage[1]325 watts / 36 volts rms
- Broadband sensitivity[2]96 dB SPL
- Coverage angle90˚ conical DMT™
- Directivity factor (Q)6.3
- Directivity index (DI)8.0
- Recommended crossoverN/A
- Maximum SPL at 1 m (passive)
- 121 dB continuous[3]
- 127 dB peak[4]
- Rated impedance4Ω
- HF transducer45 mm (1.75-inch) voice coil, compression driver
- LF transducer305 mm (12-inch) driver with 64 mm (2.5-inch) voice coil
- Enclosure details
- Input connector: Two NL4 connectors
- Enclosure material: 15 mm Baltic birch plywood
- Attachment points: Eleven M10 threaded inserts
- Color: Black (RAL 9011)
- Grille: 16-gauge powder coated steel
- Dimensions (H×W×D): 22.5×15.1×14.5" (510×385×370mm)
- Net weight: 39.7 lbs (18.1 kg)
- Notes
- [1] 2 hour rating using IEC60268 noise based on minimum impedance
- [2] Mid-band based on nominal impedance; 2.83 V at 1 m for 8Ω loudspeakers or 2 V at 1 m for 4Ω
- [3] Calculated as the nominal sensitivity plus 10× the log of continuous rated power in volts squared divided by nominal impedance
- [4] Calculated as the continuous calculated max output plus 6 dB
