Orders placed after 4PM on weekdays will not ship until the next business day. Orders placed after 11am Fridays will not ship until the following Monday.
Faster shipping methods may be available; just upgrade during checkout.
*Some exclusions apply.
Enter new zip code to refresh estimated delivery time.
The Mackie Thump18S is a powered subwoofer that features an 18" custom high-output woofer. With 1200 watts of power, you get the high bass output you need in a package that is designed to be tough and portable.
Featuring a built-in crossover at 140 Hz, stereo high-pass outputs and full-range outputs, the Thump18S allows you to connect top speakers and additional subwoofers without any extra hardware. Using efficient Class-D amplification and a dynamic bass frequency response, the speaker is designed to deliver a clear and present low end at any volume.
Professional band-pass design for maximum output and deep, room-filling lows
18" custom high-output woofer
Class-D amplification designed for cool running
Precision crossover (140 Hz)
Tuning filters deliver highly accurate bass response
Robust system protection
Dual XLR inputs for mono or stereo applications
Stereo high-pass outputs optimize sound when connecting top boxes
Stereo full-range outputs perfect for adding more subwoofers
User-adjustable level and polarity controls
Easily mount your full-range loudspeaker via pole cup
Male XLR balanced, full range
Male XLR balanced, high pass
US Detachable Line Cord:100 – 120 VAC, 50 – 60 Hz, 150W
EU Detachable Line Cord: 220 – 240 VAC, 50 – 60 Hz, 150W
AC Connector: 3-pin IEC 250 VAC, 10 A male
Power Supply Type:Switchmode
Operating Temperature:0 - 40º C
Extended Ambient Temperature:32 - 104º F
Peak and RMS limiting, power supply and amplifier thermal protection
Front and rear power ON, rear OL limiter
CabinetExterior: Grade 15 mm plywood
Finish:Textured black catalyzed polyurethane paint
One on each side
The Thump18S subwoofer is designed to sit on the floor or stage. It is NOT designed to be pole-mounted or suspended. The cabinet has no rigging points and is not suitable for rigging. Never attempt to suspend the Thump18S by its handles