QSC PL-LA12 – 12-in 2-Way Passive Installation Line Array, White

Product Overview

The QSC PL-LA12-WH is a two-way passive 12-inch installation line array loudspeaker finished in white (RAL 9003) for medium- and large-format installs requiring extended low-frequency reach and low visual impact. Featuring LEAF Waveguide technology and a 90 x 15 degree dispersion pattern, this passive line array module delivers controlled vertical coverage with high SPL for demanding indoor and covered outdoor applications. The impact-resistant ABS enclosure supports passive and bi-amp operation and integrates with PL-SUB18 subwoofers for flown sub-array systems. It is a purpose-built solution for scalable, high-output installed line array deployments where the cabinet must blend with light surfaces.

Product Description

The PL-LA12 pairs a 12-inch neodymium LF transducer with a 2.5-inch voice coil and dual 1-inch exit compression drivers to deliver a system bandwidth of 59 Hz to 20 kHz (-3 dB). System sensitivity is 102 dB (1 W/1 m), with continuous SPL reaching 119 dB passive and 123 dB bi-amped. The bass reflex enclosure can be ground-stacked up to 3 cabinets or flown up to 12 cabinets, and supports hybrid arrays of 3x PL-SUB18 plus 10x PL-LA12, all requiring the PL-LA12-AF array frame. Eight discrete rigging angles from 0.5 to 12 degrees allow precise vertical splay tuning. QSC LEAF Waveguide technology shapes the HF wavefront for consistent coverage and reduced lobing across the array. Connectivity includes two Speakon NL4 connectors and a parallel locking 4-pole Euroblock in an IP65-sealed input cup. The white RAL 9003 finish, IP54 weatherization, stainless hardware, UV-treated grille, and hydrophobic mesh support challenging fixed-install environments. At 43 lbs, the cabinet delivers high output density for permanent reinforcement systems.

Key Features

• White RAL 9003 Finish — Light-toned ABS enclosure blends with ceilings and pale architectural surfaces.
• LEAF Waveguide Technology — Shapes the HF wavefront for consistent coverage and minimized lobing across the array.
• 90 x 15 Degree Coverage — Long-throw horizontal pattern with tight vertical control for larger venues.
• Dual HF Compression Drivers — Two 1-inch exit drivers extend high-frequency output and headroom.
• Passive or Bi-Amp Operation — Selectable crossover at 1.5 kHz passive or 1.2 kHz bi-amp adapts to varied system architectures.
• Flyable With PL-SUB18 — Supports hybrid arrays of 3x PL-SUB18 and 10x PL-LA12 for integrated low-end.
• Scalable Deployment — Ground-stack up to 3 or fly up to 12 cabinets with the PL-LA12-AF array frame.
• Eight Rigging Angles — Discrete splay settings from 0.5 to 12 degrees enable precise array shaping.
• IP54 Weatherization — Stainless hardware, UV-treated grille, and hydrophobic mesh support covered outdoor use.

Typical Applications

• Auditorium — long-throw arrays delivering high SPL while blending with light architectural finishes.
• House of worship — full-range music and speech reinforcement for large sanctuaries.
• Multi-purpose room — scalable coverage for concerts, conferences, and assemblies.
• Broadcast studio — controlled coverage with extended low-frequency response for production audio.
• Commercial meeting space — high-output reinforcement for large all-hands and event venues.

Technical Specifications

Frequently Asked Questions

How does the PL-LA12-WH differ from the PL-LA12-BK?

The acoustic and mechanical specifications are identical; only the enclosure finish differs, with the WH model supplied in white RAL 9003.

What is LEAF Waveguide technology?

It is QSC's HF waveguide design that shapes the high-frequency wavefront for consistent coverage and reduced lobing between coupled array elements.

Can the PL-LA12 be flown with subwoofers?

Yes. The array supports a hybrid configuration of 3x PL-SUB18 plus 10x PL-LA12 using the PL-LA12-AF array frame.

Is the array frame required?

Yes. The PL-LA12-AF array frame is required for both ground-stack and flown deployments.

Does the PL-LA12 support bi-amping?

Yes. It operates passively at a 1.5 kHz crossover or bi-amped at 1.2 kHz for additional headroom.

Is it rated for outdoor use?

It carries an IP54 rating with IP65 sealed input cup, stainless hardware, UV-treated grille, and hydrophobic mesh for covered outdoor installs.