The QSC KLA181 Active Subwoofer is a subwoofer module that provides your concerts with masses of low-end power. It has an 18 inch inverted vented woofer which provides even and clear sound and a massive acoustic output of 135 dB SPL. This subwoofer can be used on its own but is designed to be arranged in arrays with the KLA12 giving you options to boost your low-end and get wide coverage in larger venues or even large suspended arrangements for arenas and outdoor festivals. The KLA181s extensive DSP features optimise its sound with QSCs DEEP algorithm delivering extended bass response that prevents distortion by managing low-frequency transients. GuardRail circuitry protection prevents thermal overload and clipping and Auto Standby engages after five minutes of inactivity for more efficient power consumption. The KLA181 gives powerful and clear low-end with plenty of articulation making it a professional choice for venues that want to sound their best.
Massive sound Your venue needs a huge sound to fill the room. Making your performances stand out and providing your audience with the best experience as possible. Ensure incredibly loud and incredibly clear sound with this subwoofer. Providing 1000 watts of pure power pumped through its 18-inch cone – this speaker is sure to shake the room – it can reach 135dB SPL levels. The speaker can reach into the depths of frequency response too able to hit 33Hz easily. And thanks to the extensive DSP integrated into the speaker its performance is enhanced and protected. Meaning you can provide amazing sound efficiently and safely. Rugged construction Running a concert hall can be tough work. Things can break – and usually at the most inopportune times. Thankfully QSC has designed the KLA181 to be extremely tough whilst staying relatively light. The tough birchwood enclosure is covered with texture paint to help keep it safe from the trials of the day to day running of a venue. Its built to last so is a must-have for venues of all sized. Big medium or small. Features 1000 watt power module 18-inch vented subwoofer High acoustic output (135 dB SPL peak) Frequency range down to 33 Hz (-10 dB) Extensive DSP further enhances and protects performance powerCON® Input and Thru connections Threaded pole receptacle for free-standing applications (black models only) Suspension made possible via M10 fittings or KLA12AF Array Frame Specifications Configuration: 18-inch subwoofer Transducers: 18-inch cone transducer Frequency Response (-6 dB): 38 Hz Frequency Range (-10 dB): 33 Hz Maximum SPL (1 meter): 135 dB peak Power Output: 1000 W Class D continuous Input Impedance XLR: 40 kΩ balanced / 20 kΩ unbalanced Controls: Power Attenuation LF Mode (Normal/DEEP™) Polarity (Normal/Reverse) Front LED (Pwr/Limit/Off) Indicators: Power Signal Standby Limit Connectors: Balanced female XLR line level input Balanced male XLR full range line level out Remote attenuation control Locking powerCON power connector AC In Locking powerCON® power connector AC Out Cooling: On demand 50 mm variable speed fan Amplifier Protection: Thermal limiting output overcurrent overtemperature muting GuardRail™ Transducer Protection: Thermal limiting excursion limiting AC Power Input: Universal power supply 100–240 VAC 50 to 60 Hz Material: Painted birch plywood Finish: Black or white textured paint Grille: Black or white powder coated 16 gauge steel Dimensions (H x W x D) inches: 21.6 × 23.1 × 25.7 Dimensions (H x W x D) mm: 547 x 586 x 633 Net Weight: 100 lb/45.3 kg
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