Status, October 2026: current. Mackie still lists the Thump118S in its Thump Series, alongside the newer Thumpv4 Series and its Thump18Sv4.
What it is
The Thump118S is an 18-inch powered subwoofer from Mackie and the flagship sub of its Thump Series (Mackie product page). It arrived with the 15-inch Thump115S in Mackie's 2022 refresh of the Thump range, which began shipping in August 2022 (Pro Mobile). Mackie calls the pair the perfect match for a Thump loudspeaker system, whose 2022 tops run from the 10-inch Thump210 to the 15-inch Thump215.
A 1,400 W peak Class-D amplifier drives the 18-inch woofer. Mackie quotes a maximum SPL of 132 dB and a frequency response of 40 Hz to 120 Hz at -3 dB, reaching 30 Hz at -10 dB (spec sheet).
Two balanced XLR inputs take a stereo feed; there are no 1/4" or RCA inputs. Two XLR high-pass outputs feed the tops, and a High Pass Mode button picks one of four voicings: Flat, Deep for more low-end extension, Punch for more output, or Variable, which sets the tops' high-pass between 80 Hz and 160 Hz. Two XLR full-range outputs pass the input on unchanged, in stereo or summed to mono, to chain a second sub. The back panel also has a gain knob, a polarity switch and a switch for the front LED (owner's manual).
An M20-threaded socket on top takes a speaker pole, sold separately, and two top corner handles carry it. It measures 540 x 530 x 605 mm (H x W x D) and weighs 29.7 kg. A detachable power cord is in the box.




