HK Audio L3 112 FA - 12” Active PA Speaker with DSP and FIR Crossover

HK Audio LINEAR 3 L3 112 FA – 12” Active PA Speaker with DSP and FIR Crossover

The HK Audio L3 112 FA is a compact , self-powered, 2-way full-range system that combines a 12” woofer and 1” driver with an internal digital processor to deliver powerful, defined and easily adjustable live sound. Its 16mm MDF enclosure with trapezoidal design minimizes resonances and provides robustness for professional touring, rental and installation use. With 1200W bi-amplified Class D amplification , a maximum SPL of 135 dB (peak) and a frequency response of 65 Hz – 18 kHz (±3 dB) / 58 Hz – 18 kHz (-10 dB) , this speaker performs with authority in portable sound reinforcement, live music, DJ sets and corporate events, either as a stand-alone system or combined with LINEAR SUB series subwoofers.

The internal DSP optimizes response and transition between channels via an active 2.3 kHz X-Over FIR with a 72 dB/oct slope, offering a homogeneous 90° × 55° coverage thanks to its constant directivity horn. Operation is direct via two EQ switches with Bass Boost / Flat (LF) and Flat / Contour (MHF) presets, to adapt the speaker to the musical style and the venue in seconds. In terms of connectivity, it integrates 2 balanced XLR combo line/mic inputs , 1 stereo RCA input and 2 XLR Through outputs (one of them Mix Out ) for clean signal chaining. Its complete package of electronic protections — undervoltage , thermal , short circuit , overload , subsonic filter , peak, RMS and multiband limiters and look-ahead thermal control — ensures continuous reliability even during extended sessions.

Mounting is quick and precise thanks to the Duo Tilt (3°/7°) base , which allows the beam to be directed toward the audience when installed on a bar. It features four M8 mounting points and two handles for easy transport. The metal grille with black acoustic foam protects the components, while the black acrylic enamel finish offers durability and a discreet aesthetic. Its 36 x 66 x 36.7 cm dimensions and 21.5 kg weight balance portability and performance for a variety of usage scenarios.

Main features

• 2 active full range channels with LF 12” and HF 1”.
• Bi-amplified Class D amplification with a total power of 1200 W.
• Max SPL: 135 dB (peak).
• Frequency response: 65 Hz – 18 kHz (±3 dB); 58 Hz – 18 kHz (-10 dB).
• Active FIR crossover: 2.3 kHz with 72 dB/oct slope.
• Coverage: 90° × 55° with constant directivity diffuser.
• DSP with presets accessible by 2 EQ switches: Bass Boost/Flat (LF) and Flat/Contour (MHF).
• Connections: 2 × Balanced XLR Combo Line/Mic; 1 × Stereo RCA Input; 2 × Balanced XLR Through (1 × Mix Output).
• Active protections: undervoltage, thermal, short circuit, overload, subsonic filter, peak/RMS/multiband limiters, look-ahead thermal control.
• Robust enclosure: 16mm MDF, trapezoidal design; metal grille with black acoustic foam.
• Mounting and installation: Duo Tilt 3°/7° base and 4 × M8 points; 2 carrying handles.
• Dimensions and weight: 36 × 66 × 36.7 cm; 21.5 kg.
• Input sensitivity: +4 dBu (gain on center click).

Product benefits

• Consistent Clarity and Coverage: The FIR crossover and 90° × 55° guide ensure clean transitions and even projection across the entire listening area.
• Instant adjustment to your environment: Bass Boost and Contour presets for adapting bass and presence without external processors.
• Professional reliability: comprehensive electronic protection maintains stable performance under high demands.
• True versatility: works as a main speaker or combined with LINEAR SUB subwoofers to extend the low range.
• Fast and precise mounting: Duo Tilt makes it easy to direct the beam towards the audience and optimize coverage.

Use cases

• Portable PA reinforcement for events, rentals, and technical production.
• Live music, vocals, and DJ playback in medium-sized venues.
• Fixed installations in multipurpose rooms, bars and auditoriums.

Frequently Asked Questions

• Can I use it without a subwoofer? Yes. It operates as a full-range speaker; for greater bass extension, it can be combined with subwoofers from the LINEAR SUB series.
• How do you quickly adjust the tone? Use the two EQ switches: Bass Boost/Flat for the low end and Flat/Contour for the midrange and highs.
• What input level does it support? Input sensitivity +4 dBu with the gain control on the center click.
• What mounting options does it offer? 3°/7° Duo Tilt bar socket and 4 M8 mounting points .

Description for projects

2-way full-range active loudspeaker with 12” LF and 1” HF; DSP with FIR crossover at 2.3 kHz (72 dB/oct); 90° × 55° coverage; response 65 Hz – 18 kHz (±3 dB) / 58 Hz – 18 kHz (-10 dB); total power 1200 W Class D bi-amplified; max. SPL 135 dB peak; EQ presets (Bass Boost/Flat and Flat/Contour); connectors 2 × XLR Combo line/mic, 1 × stereo RCA, 2 × XLR Through (1 × Mix); sensitivity +4 dBu; protections (undervoltage, thermal, short circuit, overload, subsonic filter, peak/RMS/multiband limiters and look-ahead thermal control); 16 mm MDF enclosure with trapezoidal design; Duo Tilt 3°/7° plinth; 4 × M8; 2 handles; metal grille with acoustic foam; dimensions 36 × 66 × 36.7 cm; weight 21.5 kg; black acrylic enamel finish.