QSC AD-S112SW – AcousticDesign 12-Inch 300W Surface-Mount Subwoofer (Black) is backordered and will ship as soon as it is back in stock.
Shipping Availability*
Shipping Availability*
Free Ground Shipping on Most Orders Over $250.00
Looking for the best price or expert advice? Give us a call at 1-888-230-3661 or use the Live Chat below. Buying 1 or 100, you may qualify for greater savings beyond the advertised price.
Product Overview
The QSC AD-S112sw is a 12-inch, 8-ohm surface-mount subwoofer that adds low-frequency reinforcement to QSC AcousticDesign full-range loudspeakers. Supplied with a yoke mounting system, this black model suits commercial music systems in retail, hospitality, education, and houses of worship.
This direct-radiating subwoofer extends system bass response down to 30 Hz and uses QSC's TFR (Turbulent Flow Reduction) port for higher clean output, making it a well-matched companion for AD-S series satellites.
Product Description

The AD-S112sw uses a 12-inch weather-treated paper-cone woofer on a 2.5-inch voice coil, handling 300W RMS with a 30 Hz to 135 Hz (-10 dB) frequency range and a peak maximum SPL of 121 dB. The TFR port tunes enclosure resonance and is optimized for high-velocity airflow, raising output before turbulence or port 'chuffing.'
A 4-pole Euroblock connector with loop-thru wiring sits under a sealed input cover, and M10 fittings allow suspended or flown deployments using M10 Kit-C hardware. The included yoke mount takes advantage of boundary-plane coupling while reducing vibration transmission.
The rugged ABS enclosure and powder-coated aluminum grille exceed IP54 for dust and splash resistance, supporting indoor or covered outdoor use. QSC Intrinsic Correction voicings are available through Q-SYS processing or CXD/CX-Q amplifiers. Pair it with QSC AD-S series satellites such as the QSC AD-S8T.
Key Features
- Direct-radiating 12-inch woofer — A 12-inch weather-treated paper-cone woofer on a 2.5-inch voice coil delivers deep, controlled low-frequency output to 30 Hz.
- TFR port design — Turbulent Flow Reduction tunes enclosure resonance for high-velocity airflow, yielding higher clean output before port turbulence.
- 300W power handling, 121 dB peak — Provides substantial low-frequency headroom to support full-range AcousticDesign satellites.
- Yoke mount included — Takes advantage of boundary-plane coupling while reducing vibration transmission for clean, solid bass.
- M10 suspension fittings — M10 fittings support suspended or flown installation using M10 Kit-C hardware (available separately).
- IP54 weather resistance — A rugged ABS enclosure and powder-coated aluminum grille exceed IP54 for indoor or covered outdoor use.
- Q-SYS Intrinsic Correction ready — Advanced voicing filter sets are available through Q-SYS or CXD/CX-Q amplifier platforms for integrated tuning.
Typical Applications
- House of worship
- Commercial meeting space
- Multi-purpose room
- Training room
- Auditorium
Technical Specifications
| Configuration | Direct-radiating surface-mount subwoofer |
| Driver | 12 in weather-treated paper-cone woofer, 2.5 in voice coil |
| Power handling | 300 W RMS |
| Frequency range | 30 Hz – 135 Hz (-10 dB) |
| Maximum SPL | 121 dB (peak) |
| Impedance | 8 ohms |
| Port | TFR (Turbulent Flow Reduction) port |
| Input connector | 4-pole Euroblock with loop-thru, under sealed cover |
| Mounting | Included yoke mount; M10 fittings for suspension |
| Ingress protection | Exceeds IP54 |
| Enclosure / grille | ABS enclosure, powder-coated aluminum grille |
Competitor Comparison
| Criteria | QSC AD-S112sw | JBL Control SB2210 | Bose DesignMax DM10S-SUB |
|---|---|---|---|
| Driver | 12 in direct-radiating, 2.5 in voice coil | Dual 10 in | 10 in |
| Port technology | TFR port for higher clean output | Bass-reflex | Bass-reflex |
| Low-frequency extension | Down to 30 Hz (-10 dB) | Extended low end for installed systems | Extended low end for installed systems |
| Weather rating | Exceeds IP54 for covered outdoor use | Indoor/outdoor variants available | Primarily indoor |
| Mounting | Included yoke; M10 suspension points | U-bracket / suspension hardware | Bracket / suspension hardware |
| DSP ecosystem | Q-SYS Intrinsic Correction via CXD/CX-Q | JBL/Crown processor tuning | Bose ControlSpace tuning |
Frequently Asked Questions
Which loudspeakers pair well with the AD-S112sw?
It is voiced to complement QSC AcousticDesign full-range models such as the AD-S6T and AD-S8T, providing matched low-frequency extension in a distributed or low-impedance system.
Can the subwoofer be flown?
Yes. M10 fittings accept M10 Kit-C hardware for suspended or flown deployment, and an included yoke supports surface mounting.
Is it a powered subwoofer?
No, the AD-S112sw is a passive 8-ohm subwoofer driven by a separate amplifier; QSC Intrinsic Correction tuning is available through CXD/CX-Q amplifiers or Q-SYS.
What warranty and support come with this loudspeaker?
QSC installed loudspeakers are covered under QSC's standard limited warranty; refer to QSC's published warranty terms for the current coverage period applicable to this model. Creation Networks provides pre- and post-sale support for system design and integration questions.
At Creartion Networks, we do everything we can to create an excellent customer experience. This includes fast shipping and easy returns.
- Most in-stock orders placed Monday-Friday ship within 24-48 hours. General restrictions apply; please see our full shipping policy here.
- We offer a 30-day return policy from the delivery date on many products. Product restrictions apply. Restocking fees for the return of open-box items. Please see our full return policy here for more information.
Nationwide Audiovisual Services, Design, Installation & Support
Creation Networks is a trusted nationwide partner for complete audiovisual solutions — delivering expert AV system sales, professional design, programming, installation, and ongoing support to organizations across the United States.
From Microsoft Teams Rooms and enterprise video conferencing to LED video walls, live streaming production, and hybrid collaboration systems, we provide end-to-end AV integration using premium, certified technology from industry leaders including Crestron, Q-SYS, Shure, Extron, and Absen.
Whether you operate a single location or manage facilities nationwide, Creation Networks ensures your AV systems are designed for reliability, scalability, security, and long-term performance — helping your organization communicate more effectively and operate at peak efficiency.
CREATION NETWORKS — A PARTNER YOU CAN TRUST SINCE 2006











