Mackie Thump18S 1200W 18" Powered Subwoofer

600W 18" Powered PA Subwoofer with Dual XLR Inputs, Stereo Full-range and Highpass Outputs, Adjustable Level and Polarity Controls, Built-in Handles, and Pole Cup
Mackie Thump18S 1200W 18
Mackie Thump18S 1200W 18
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Purchase select Mackie Thump Powered Speakers like this one at Sweetwater and receive up to $100 Instant Savings! Effective now through June 30, 2017. The price shown reflects your savings.
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Mackie Thump18S 1200W 18" Powered Subwoofer
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Pack a Bigger Live Punch with this Active Sub!

Take it from Sweetwater, when you're talking powered PA subwoofers, efficiency is the name of the game. With a cutting-edge bandpass design that delivers class-leading output and deep, venue-shaking bass, the Mackie Thump18S serves up your lows with impressive clarity and punch. The Thump18S sports an 18" custom high-output woofer powered by a beefy, cool-running 600-watt RMS Class D amplifier, all housed in a rugged wood enclosure. The system gives you powerful low-end response from 40Hz-120Hz (-3dB). And with dual XLR inputs, stereo full-range and highpass outputs, adjustable level and polarity controls, and a pole cup for mounting your main speakers, the Mackie Thump18S gives you the flexibility you need for just about any sound-reinforcement scenario.

Mackie Thump18S 18" Powered PA Subwoofer Features:

  • 18" custom high-output woofer
  • 600W RMS (1200W peak) Class-D amplifier delivers ample power for high-output applications
  • Frequency response: 40Hz-120Hz (-3dB)
  • Rugged all-wood enclosure with pole cup for mounting full-range loudspeakers
  • System protection safeguards your investment
  • Dual XLR inputs
  • Stereo full-range and highpass outputs
  • Adjustable level and polarity controls
  • Built-in handles for easy transport

Additional Media

PA Speaker Buying Guide
Thump TH-18S Spec Sheet
Thump TH-18S User Manual

Tech Specs

Powered/Unpowered Powered
Power Configuration Single Amp
LF Driver Size 1 x 18"
Total Power 600W RMS/1200W Peak
Inputs 2 x XLR
Outputs 4 x XLR
Frequency Range 30Hz-132Hz (-10dB)
Crossover Frequency 140Hz
Maximum Peak SPL 130dB
Enclosure Material 15mm Plywood
Mounting Options Floor
Height 26.5"
Width 22.6"
Depth 22.8"
Weight 82 lbs.
Manufacturer Part Number 2042232-00

Customer Reviews

Based on 11 reviews
Write your review

Mackie speaker's. Are always awesome and good price point

Testing new thump 18's pulling trigger on then Friday night if there anything like my Mackie swa 15's they'll be great I'm going to run 4 subs my 15's and the18's big area to fill lol


How could you not love these? I'm rough on them and they always deliver to me. They're big and beefy. Fill up the low end like they should.

Mackie Thump 18s

Nice Solid bass response, the 18s worked quite well it thumped through out the night and you can feel in your chest. But I must be honest this wedding I just did 10-29 was its first time and my first time with the Mackie 18s so I really need to get a gig that can put it to the test, of some endurance, but as of now so far thumbs up,

We made a good Choice

We are always treated well when we purchase from Sweetwater. I love this Makie Thump 18s 1200w , its enough for what we do so far. I am impressed. Its heavy but what Sub isnt...... We are very happy, The delivery was quick and not issues. Thanks Sweetwater... as always we are happy customers.

I Need another One

This sub is amazing I need one more to even it out my set up but it gets the job done.

Sweetwater Advice

Scott DeMarko

The Thump TH-18S subwoofer is the ideal vehicle behind a full PA system or a smaller 2.1 house system. The built-in crossover and additional outputs for full-range operation into your tops is the ideal setup for a subwoofer. More importantly, despite how extremely durable and well built the Thump TH-18S is, it's still very portable and not too heavy. It has just the right mix of brawn, brain, and size to make it one of the most affordable and efficient subwoofers I have seen in this price range and beyond. For DJs, small clubs, skate rinks, and more, this is your go-to subwoofer!
See also: PA Subs, Mackie, Mackie PA Subwoofers