Updated 11 May 2026
| Brand | QSC |
| Category | Musical Instruments |
| Available at | 1 UK stores |
| 90-day avg | £1767.33 |
QSC
QSC KS118 18 Active PA Subwoofer
£1770.00Fair Price
Cheapest at Gear4music · 1 store
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PRICE HISTORY
Current
£1546
Change
+9.5%
Avg
£1503
Low
£1393
High
£1645
Volatility
4.0%
PRODUCT DESCRIPTION
- DEEP&trade
- mode The KS118 comes equipped with new proprietary DSP called DEEP mode which extends low-frequency response and delivers clear snappy transients. With this mode engaged this subwoofer goes all the way down to 35 Hz providing huge sub-frequencies to add extra thump and presence to the bass of any gig. Recallable scenes Live shows can throw a lot of challenges and things to suddenly adapt to your way. New bands new instruments and differently-sized crowds can all change the response of a venue so ensuring that your bass is controlled is the best way to get a balanced mix and prevent feedback on-stage. With the KS118s scenes mode you can store specific settings to fit certain setups maybe you want a cardioid subwoofer array one night and then you want to stack a pole-mounted full-range PA on top the next. With scenes you can keep all of the options that you need to do this and sound great in the process saving and recalling crossover speaker delays omnidirectional or cardioid radiation and DEEP mode settings. Portability Subwoofers are big heavy and tough to move. The KS118s relatively lightweight but durable birch plywood enclosure heavy-duty casters and side-mounted handles make this much easier to move around or between venues for bands and engineers on the go or when you need to change your setup. Reviews "QSCs new KS118 subwoofers are powerful flexible and neat. They combine great delivery with a relatively compact physical form and the cardioid capability is something that can benefit just about any live sound setup." - Sound on Sound KS118 Review In the box QSC KS118 Active Subwoofer 4 x Low-Noise Heavy-Duty Casters Features High-output design with exceptional low-frequency performance Ultra-powerful 3600 Watt Class-D amplifier module 18 long-excursion direct radiating driver Omni-directional or cardioid radiation modes Selectable DEEP&trade
- mode extends the LF response for even deeper bass Adjustable crossover and delay Save and recall scenes for commonly-used applications Refined elegant aesthetic to suit a diverse range of venues and uses 18mm Birch plywood cabinet with a rugged black finish Can be deployed vertically or horizontally Equipped with an M20 threaded pole receiver for vertical setups Includes four low-noise heavy-duty casters 6-year QSC warranty when you register your KS118 Specifications Subwoofer Configuration: Direct radiating LF Transducer: 18 (460 mm) cone Frequency Response: 41 Hz - 98 Hz (-6 dB) Frequency Range: 35 Hz - 111 Hz (-10 dB) Nominal Coverage Angle: Omni-directional or cardioid radiation modes (cardioid setup requires a minimum of 2 x KS118 subwoofers) Maximum Rated SPL: 136 dB at 1m (peak) Amplifier: Class-D 3600 W (peak) Cooling: Low-noise variable speed fan Controls: Power ON/OFF Gain control Rotary encoder 2 x Selection buttons Indicators: 2 x Power LED (front and rear) Input signal LED Limiter active LED Connectors: 2 x Locking female XLR-1/4 combo inputs 2 x Male XLR loop-thru outputs 1 x Locking IEC power connector Enclosure: Material: 18 mm Birch plywood Colour: Black (RAL 9011) Grille: 16-gauge black powder coated steel AC Power Input: Universal power supply 100-240 V AC 50 - 60 Hz AC Power Consumption: 100 V AC: 3.6 A 120 V AC: 3.0 A 240 V AC: 1.7 A Dimensions (H x W x D): 640 mm x 520 mm x 785 mm / 25.2 x 20.5 x 30.9 (including casters) Net Weight: 47kg / 104lbs (including casters) Regulatory: CE WEEE UL Chine ROHS ROHS II FCC Class B