The black AcousticPerformance Dual 12” Direct Radiating Subwoofer from QSC is designed for use in portable and installed sound applications and provides exceptional punch while maintaining ample extension so the musically important fundamentals are solidly and accurately reproduced. The subwoofer features dual 12” woofers reversed mounted on a V-baffle for improved thermal protection and performance. The 15mm Baltic Birch enclosure is finished in an environmentally friendly, waterborne, polymer finish rugged enough for the demands of everyday use while also being field repairable. Internal bracing is employed to eliminate acoustic losses due to panel resonance while maintaining the lightweight enclosures robustness. Ample port area allows free movement of air resulting in minimal turbulence and port distortion.  

The versatility of the subwoofer is evidenced by two pole mount options for both vertical and horizontal applications. Furthermore, when horizontal, the speaker has a shallow height, desirable for under riser installs. It includes four integrated handles and an optional caster kit for ease of transport.

The subwoofer input cup features dual NL4 connectors in a crossed configuration, where pins 2 of the input are returned to pins 1 on the thru output. This configuration allows a single NL4 cable to carry both sub and top box signals without the need of a custom turn cable.  

Presenting a clean, unobtrusive look, AcousticPerformance grilles are unadorned eliminating the need to cover-up logo treatments which can be difficult to hide or remove. The grille is also lined with acoustically transparent backing adding to the enclosure’s professional appearance. 

• Premium-grade, long excursion, dual 12” transducers
• Shallow horizontal profile for under riser deployments
• Advanced voicing filter sets using QSC Intrinsic Correction, available through either Q-Sys processing or CXD amplifier platforms
• Two threaded pole cups for both vertical and horizontal applications
• Two NL4 connectors in crossed configuration for easy pass thru to top boxes
• Clean industrial design with unadorned grilles compliment most decors and settings 
• Interlocking feet and recess features allow for rigid stacking
• 15mm Baltic birch plywood construction 
• 16-Gauge powder coated steel grilles 
• Four integrated handles and optional caster kit for ease of transport

Related Questions and Answers

Q: 1. I see that these are for the k series, does anyone know if they fit the new k.2 series?

A: They definitely do.

Q: 2. Is the Case suitable to house the QSC-K12.2 Speakers?

A: Yes, the ProX ATA Flight Case for Two QSC-K12 Speakers is suitable for two QSC-K12.2 speakers.

Q: 3. can this subwoofer work with the kanto Yu6?

A: Yes

Q: 4. Why would i get a humming sound when in auto position?

A: There may be an un-grounded component or circuit in the AC power loop. You can try using a different AC outlet. Or not use the Auto function at all.

Q: 5. Works with EV brand sub and speakers?

A: This pole has a standard sized pole mount, and will screw into any sub with an M20 female thread.

Q: 6. In the second photo, does anyone know which speakers are shown strapped to the top?

A: It's difficult to be certain, but from the size of the bags in comparison to the KS112 subwoofer, I think the speakers in the two bags on top of the sub are both the QSC K10.2 (B&H # QSK102). The side flaps that are visible on the two tote bags do look very much like the QSC K10 TOTE Soft Tote Bag (B&H # QSK10TOTE - look at the 4th photo on the item page for this tote bag). The other QSC tote bags for the K12.2, K8.2, and other models have a different sized side flap or a different pocket.

Q: 7. internal dimensions?

A: The interior dimensions of the ProX ATA Flight Case for Two QSC-K10 Speakers are 20.5 x 12.5 x 12" (52.1 x 31.8 x 30.5 cm).

Q: 8. is this subwoofer compatible with audioengine hd3?

A: Yes, from the audio output of the HD3s you can.

Q: 9. Can two of these be threaded together to make one longer pole? I'm mounting on a KS212C with a K10.2 on top but need more height.

A: You wouldn't want to couple two together as that may create a dangerous tipping situation. Ultimate Support does have and adjustable sub pole that extends to 52". https://www.bhphotovideo.com/c/product/914419-REG/ultimate_support_js_sp50_satellite_subwoofer_pole.html And On-Stage has one that will extend to 60" https://www.bhphotovideo.com/c/product/425075-REG/On_Stage_SS7745_SS7745_Adjustable_P_A.html

Q: 10. Is this a stage monitor?

A: Yes, the QSC AP-4122M AcousticPerformance Series Loudspeaker can be used as a stage monitor in addition to other deployments such as being pole mounted of flown.