Updated 8 May 2026
| Brand | QSC |
| Category | Musical Instruments |
| Available at | 1 UK stores |
| 90-day avg | £2680.00 |
QSC
QSC KLA181 18" Active PA Subwoofer
£2680.00Fair Price
Cheapest at Gear4music · 1 store
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PRICE HISTORY
Current
£2786
Change
+20.3%
Avg
£2534
Low
£2299
High
£2786
Volatility
5.0%
PRODUCT DESCRIPTION
- 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 k&Omega
- balanced / 20 k&Omega
- unbalanced Controls: Power Attenuation LF Mode (Normal/DEEP&trade
- ) 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&trade
- Transducer Protection: Thermal limiting excursion limiting AC Power Input: Universal power supply 100&ndash
- 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