An installation‑grade 18‑inch subwoofer engineered to deliver low‑frequency performance for demanding systems — indoors or out
Boston, MA — July 7, 2026 — Bose Professional today announced the launch of ShowTime STS118E, an installation-grade 18inch subwoofer designed to deliver deep, immersive bass for Bose Professional systems in indoor or outdoor environments. Built for permanent installations and performance-driven spaces, ShowTime STS118E provides the low frequency impact required for music-forward and high-energy applications — while remaining easy to specify, install, and integrate.
Designed to match the scale and voicing of high-output Bose Professional loudspeaker systems such as AMU, AMM, and Forum, ShowTime STS118E provides the controlled low end required to expand system capability without adding complexity. From venues that need more impact to outdoor spaces that demand reliability, STS118E integrates naturally with Bose Professional platforms, allowing designers to maintain control, consistency, and predictability.
“ShowTime STS118E gives our customers an easy way to add serious low-frequency energy to the systems they already trust,” said John Maier, CEO of Bose Professional. “It expands our clients’ existing installations in a way that feels seamless, working effortlessly with our loudspeakers, processors, and amplifiers so designers can scale performance without rethinking their entire platform.”
The 18-inch low-frequency driver delivers high-output bass, while the installation-grade enclosure supports both ground-stacked and suspended deployment. Integrated suspension points and removable feet provide flexibility to accommodate layout, sightlines, and mounting requirements. A universal pole cup accepts both 35 mm poles and M20-threaded poles for secure top-box mounting when needed.
Designed with indoor and outdoor deployment in mind, ShowTime STS118E features IP55 outdoor-rated construction for use in exposed and partially exposed environments. Available in black or white finish options, the enclosure integrates cleanly into a wide range of architectural and performance spaces.
“Our customers and installers will appreciate that STS118E is built for permanent installations from the start,” said Shawn Watts, VP of Americas Sales, Bose Professional. “From the IP55-rated construction and integrated suspension points to the universal pole cup and predictable voicing alongside AMU, AMM, and Forum, every detail is designed to make specification straightforward, installation flexible, and performance rock-solid.”
ShowTime STS118E is available beginning October 2026. For more information, visit BoseProfessional.com.
Um Bose Professional
Bose Professional is dedicated to transforming spaces with sound. Driven by the belief that innovation begins with exploration, our dedicated and passionate team combines deep expertise with a spirit of invention to create audio solutions that enhance performance and commercial environments. From hotels and restaurants to houses of worship, universities, and retail spaces, our systems deliver legendary performance and are seamless to design, install, and operate. For over 50 years, we’ve partnered with AV integrators, system designers, installers, and consultants around the world to build unforgettable audio experiences — and we’re just getting started.
