QSC PL-SUB12 – Passive 12-Inch Installation Subwoofer

Product Overview

The QSC PL-SUB12 is a 12-inch passive installation subwoofer from QSC's PL Series, providing low-frequency extension for permanently installed audio systems. Its compact, weatherized IP54 plywood enclosure houses a 12-inch driver tuned in a bass-reflex cabinet, making it well suited to corporate auditoriums, lecture halls, houses of worship, and small sporting venues. Driven by CX-Q Series network amplifiers within the Q-SYS ecosystem, the PL-SUB12 benefits from custom voicings, protection, and telemetry. M10 rigging points allow both ground and flown deployment.

Product Description

The PL-SUB12 adds tight, controlled bass to full-range installation systems in a footprint small enough for space-conscious rooms. Four M10 points on the bottom and four on the side support ground-stacked or flown deployment, and the weatherized plywood enclosure with polyurea paint suits indoor or protected outdoor locations. As a passive subwoofer it presents an 8-ohm load and connects via speakON NL4 or Euroblock. When driven by CX-Q amplifiers, QSC's Intrinsic Correction™ voicings and protection optimize output and reliability. For larger rooms needing deeper extension and higher output, step up to the QSC PL-SUB18 installation subwoofer, and pair with mains such as the QSC PL-DC12 point-source loudspeaker.

Key Features

• 12-inch LF transducer — 3-inch voice-coil driver in a tuned bass-reflex enclosure for tight, controlled low end.
• Compact installation footprint — Sized for corporate, education, and worship spaces where a smaller subwoofer is required.
• Weatherized IP54 plywood enclosure — Exterior plywood with polyurea paint, treated grille, and sealed input cup for indoor or protected outdoor use.
• Ground or flown deployment — Four M10 points on the bottom and four on the side support flexible mounting.
• Q-SYS platform integration — CX-Q Series amplifiers add Intrinsic Correction™ voicings, protection, and telemetry.

Typical Applications

• Auditoriums
• House of worship
• Multi-purpose rooms
• All-hands spaces

Technical Specifications

Frequently Asked Questions

Is the PL-SUB12 powered or passive? It is passive and requires external amplification. QSC recommends CX-Q Series network amplifiers (up to two per channel on the CX-Q 8K4, one per channel on the 4K4).

Can it be flown? Yes. Four M10 points on the bottom and four on the side allow both ground-stacked and flown deployment. Consult the QSC user manual for factor-of-safety information.

What mains pair well with it? It is designed to extend the low frequency of PL Series and other compatible installation loudspeakers, such as the PL-DC12, in Q-SYS systems.

Is it suitable for outdoor use? The IP54-rated plywood enclosure with polyurea paint and sealed input cup is suitable for protected outdoor locations.

What warranty applies? Coverage follows QSC's published warranty terms. For warranty registration or support, contact Creation Networks or refer to QSC's warranty documentation.