QSC KLA181 – 18-Inch 1000W Powered Line Array Subwoofer (Black)
QSC KLA181 – 18-Inch 1000W Powered Line Array 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.
QSC KLA181 – 18-Inch 1000W Powered Line Array Subwoofer (Black)
Product Overview
The QSC KLA181 is a 1000W powered 18-inch subwoofer designed for the KLA Series fixed line-array system. It extends the low-frequency response of KLA12 arrays for houses of worship, live events, and corporate venues.
It reproduces frequencies down to 33 Hz and can serve as the base of a pole-mounted array, supporting up to two KLA12 elements on top.
Product Description
The KLA181 is a self-powered 18-inch subwoofer that produces up to 1000 watts of output and reproduces frequencies down to 33 Hz, anchoring the low end of a KLA Series line array. An integrated threaded pole-cup receptacle lets you pole-mount up to two KLA12 elements directly on top of the subwoofer for a complete ground-stacked array.
For suspended deployments, M10 fittings allow the KLA181 to be flown instead of pole-mounted. The subwoofer integrates with KLA12 array elements as part of a scalable system.
For the matching array element, see the QSC KLA12.
Key Features
- Self-powered 18-inch subwoofer — Produces up to 1000 watts of output for KLA Series arrays.
- Low-frequency extension to 33 Hz — Reproduces deep low frequencies to anchor the array.
- Integrated pole-cup receptacle — Pole-mounts up to two KLA12 elements directly on top for ground-stacked arrays.
- M10 suspension fittings — Allow the subwoofer to be flown for suspended deployments.
- KLA Series integration — Designed to extend KLA12 line-array elements.
Typical Applications
- House of worship
- Auditorium
- Multi-purpose room
- Commercial meeting space
Technical Specifications
| Configuration | Self-powered 18 in line-array subwoofer |
| Driver | 18 in |
| Output | Up to 1000 watts |
| Low-frequency extension | Down to 33 Hz |
| Array mounting | Threaded pole-cup receptacle (up to 2x KLA12); M10 suspension fittings |
| Finish | Black |
Competitor Comparison
| Criteria | QSC KLA181 | RCF SUB 8004-AS | JBL PRX918XLF |
|---|---|---|---|
| Configuration | Self-powered 18 in array sub | Self-powered 18 in sub | Self-powered 18 in sub |
| LF extension | Down to 33 Hz | Deep LF tuning | Extended LF tuning |
| Array integration | Pole-cup for up to 2x KLA12; M10 fly | Pole / suspension | Pole / suspension |
| Role | Base of KLA line array | General sub | General sub |
| Ecosystem | QSC KLA Series | RCF ecosystem | JBL ecosystem |
Frequently Asked Questions
How many KLA12 elements can mount on the KLA181?
Its integrated threaded pole-cup receptacle supports pole-mounting up to two KLA12 elements directly on top of the subwoofer.
Can the KLA181 be flown?
Yes. M10 fittings allow suspended deployment as an alternative to pole-mounting.
How low does it play?
The KLA181 reproduces frequencies down to 33 Hz to anchor the low end of a KLA array.
What warranty and support come with this subwoofer?
QSC powered 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
