KS118 Active 18" Subwoofer

The QSC KS118 is a beast of an 18-inch powered subwoofer, delivering chest-thumping bass down to 35Hz that’s ideal for weddings, parties, and larger gigs in my mobile DJ setup. Its 3,600W Class D amp drives massive SPL up to 136dB peak, pairing perfectly with QSC tops like my KC12s for full-range punch. Key Strengths • Deep extension in DEEP mode and cardioid array option (with 2+ units) rejects rear sound, keeping bass focused on the dance floor without stage bleed. • Built-in DSP with presets, gain control, and low-noise fan make setup simple for quick loads in Western NY venues up to 60 miles out. • Rugged plywood cabinet with casters (77 lbs) handles road abuse; M20 pole mount stacks easily with mains. Most Important to Know Omni or cardioid modes optimize for any space—cardioid shines for stage use. Runs clean even pushed hard, with musical lows that fill rooms effortlessly for all genres. What Other Customers Should Know Pros like DJs rave about its output-to-size ratio over older models; EQ right and it thumps without distortion.

Love this Sub. Great sound and response. Powerful

I bought 2 of these before the TARRIFFS. Now they are$500 more everywhere.... these are Great subs for djs.

Loved the sound when it worked...casters would rattle, but that's an easy fix. This sub stopped working after being used 3 times. The first time I used it, there was an odd odor coming from the speaker. The next two times it worked fine, no odor. I always test my equipment prior to gigs, as I got ready for the 4th gig, this sub would power on, no sound. It's been in the shop since the last week of September with an amp module on order and no real date as to when it'll get fixed as everything is backordered. I do have another sub at home, but I regret selling my 181s now as I never had issues with those and had them for years. I never had trouble with any QSC equipment until now, so I'm not sure I'll be purchasing any additional QSC equipment in the near future and definitely won't buy this sub again until they have fixed the issues.

This is an excellent unit for my mobile wedding / pub gigs. There are products that go 'lower' or go 'louder' but this thing delivers excellent punchy bass that fills the room day-in and day-out at a great price. Combine it with a screw-in type crank-handle speaker pole and you have a solid base for even the biggest tops. Pairs great with my 68lb SRX812's. The included built-in casters are quiet and strong. Don't forget to order the factory cover to keep your investment safe!

Is this sub slightly over price, Yep!! Is it worth the money especially if your a moble Dj, Yep!! Does this sub hit hard and sounds impressive, abso-fu@king-lutely!! (check out what most clubs use) Is it a solidly build unit, Yep!! Are there better subs out there, Yep!! Would I buy a second one, yep already did.

Sub itself was good shipment not so much it arrived damaged.

Very good

Definitivamente QSC tienen más poder que HK que ofrece en su linear 7 k118 (2000 whats) y QSC ofrece 3600 whats y además tienen mucha fidelidad... tengo todo mi equipo de audio en QSC, desde la consola digital de 30 canales hasta bocinas. Los prefiero sobre muchas marcas, claro cuestan más pero si quieres sonar con calidad y fidelidad lo valen. Actualmente tengo 12 ks118 y 14 k12.2.. Me sirven para grupos chicos y grandes.. Acá dejo un souncheck con Consola digital touchmix 30. Nota: en Este 2025 compre una SQ6 Allen and Heath y suena este audio QSC eapectacular.

QSC KS118 Best Sub in the Market. Very Punchy and Deep Bass Best of the Best 3600w

Great product, just took a long time for delivery,

Love this sub it is small in size and it is very loud. I got two of them

It gave my drum set a fuller low end bass! 😊