QSC E218SW Passive, Unpowered Subwoofer

Expect huge sound from QSC's E218SW subwoofer! Loaded with dual 18" drivers, this high-performance passive E Series sub handles 1600 watts continuous power. Unpowered. Requires separate power amplifier.
The QSC E218sw is a high-performance direct radiation subwoofer with two, 800W, 18-inch, aluminum frame woofers. It's designed to produce crushing low-end for live performance with kick-drum and bass in the PA or for high-level, high-energy dance music. For portable applications it includes attachment points for four optional casters. The subwoofer's 4-ohm impedance means that a single cabinet can be optimally powered by a less expensive amplifier.

The E Series is a range of passive loudspeakers offering robust construction, trusted reliability and overall sonic performance beyond expectations. Intended for sound reinforcement in entertainment applications including live performance, DJ and dance music, karaoke and event production, E Series loudspeakers will deliver outstanding results. Building on QSC's proven "Systems" methodology, the E Series loudspeakers' performance is further enhanced when paired with QSC's GXD or PLD amplifiers or with a QSC TouchMix digital mixer, and taking advantage of the on-board DSP and factory-tuned presets. These presets support a variety of applications including live sound reinforcement (with and without subwoofers), stage monitoring, dance music and karaoke.


- High output, professional quality sound with 1600 W continuous power
- E Series Entertainment System - Advanced digital signal processing tunings and options using QSC GXD, PLD amplifiers or TouchMix digital mixers.
- E Series Entertainment System DSP Tunings are now available read more for PLD, CXD and GXD processing amplifiers.
- Rugged tour-grade textured paint
- Foam-lined perforated steel grill
- Optional Padded Cover for protection during transportation
- Optional Caster Kit for greater portability
WARNING: Cancer and Reproductive Harm - www.p65Warnings.ca.gov.
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- Configuration: 2 x 18-inch, subwoofer non powered
- Frequency Range (-10 dB): 32 Hz - 230 Hz
- Power capacity: continuous/peak: 1600 W / 6400 W
- Sensitivity: 101 dB, 1 W @ 1 m
- Output (peak SPL @ 1 m): 136 dB

- LF: 2 x 457 mm (18-inch) driver with 102 mm (4-inch) voice coil
- HF: NA

- Nominal Impedance: 4 Ohms
- Cross-over: Recommended 80 - 120 Hz LPF
- Input connectors: 2 x NL4, 1 x barrier strip
- Enclosure: 11-ply, black texture paint finish. Perforated, powder-coated steel grille with foam lining
- Gross weight: 183 lb / 83.2 kg
- Net speaker weight: 168 lb / 76.4 kg
- Dimensions(WxHxD): 1180 x 616 x 640 mm / 46.5 x 24.25 x 25.25 in
Dimensions and Weight in Packaging
Base Item
Shipping Weight: 184 lbs
Shipping Dimensions: 51 x 29 x 27 in
Manufacturer Part Number (MPN): QSC E218SW
For support or warranty questions, please contact the manufacturer:
Phone: (800) 772-2834
Web: http://qsc.com/support
(2 ratings)
Submitted May 23, 2021 by Drew B in LAS VEGAS, NV
"Just wow..."
Verified Customer zZounds has verified that this reviewer made a purchase from us.
So for the price I'll admit, I was skeptical. I am powering it with a bridged crown XLS 2502, and let me tell you THIS THING SLAMS!! I am in pure disbelief how much bass can come from a single cabinet. I loved it SO MUCH, I actually ordered a second one but I've got no clue why. One cabinet is plenty for anything except very large (500+ bodies) shows. I use this in a metal building in a location that's not exactly ideal, and everything in a 20 foot radius of this sub moves if it's not fastened down. To be clear, I listen to edm, and I need better tops now because they can't keep up with the level of bass this puppy can produce. You can feel the kick in your chest from about 60-70 feet away from just one sub. Hopefully when the second one arrives I can update on the difference that makes! I'm gonna need new tops, and I'll be eyeing QSC a lot more now.

The sound quality is incredible. After playing with crossover settings, the sound I'm getting for all genres but mostly edm is nothing short of incredible.

I like the addition of a barrier strip for flexibility, if I ever forget a cable or something I can make something work. Great if you're installating these permanently as well.

Ease of Use
It's pretty easy to get it to sound good.

The grill is nice and thick, the foam behind the grill is a nice touch giving it a read more classy, somewhat discrete look. There was no noise created by the airflow from the port, and I would imagine it offers some protection from spilled beverages, preventing them from reaching the cones hopefully

I'm in disbelief what I've received for the price. It's absolutely insane just how good it is. The bass is audible hundreds of feet away from the building it's in with just one sub.

Manufacturer Support
I have not needed to reach out to QSC, nor do I expect to need to.

The Wow Factor
While there are other subs out there, I've tried JBL and honestly I like the "sound" of this unit more. For the same price as two of JBL bottom end offerings, you can get one of these which is honestly not even fair how far apart they fall. This sub blows anything jbl away unless you start spending way more than double.

Musical Style:
EDM, country, pop
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