A powered, portable bass module, the Bose Professional Sub1 Portable Bass Module combines with virtually any portable PA and delivers low-end performance down to 40 Hz. Its unique 7” × 13” high-excursion RaceTrack driver allows for an ultra-slim enclosure, delivering performance that rivals traditional round drivers without the cumbersome size, freeing up room in your vehicle and on the stage. Compared to the Sub2 subwoofer, Sub1 is the more compact subwoofer option for the Bose L1 Pro32 system, combining seamlessly via single-cable SubMatch connectivity. You can stack multiple Sub1 subwoofers for even more low end — or to unleash Cardioid Mode for directional bass. With a Sub1, you get a subwoofer that goes virtually anywhere and effortlessly fills out your sound. 
 
Give your songs full impact
In fact, this visionary design offers a surprising size-to-performance ratio. The RaceTrack driver's unique shape allows the physical enclosure to be slimmer without compromising sound. This also frees up room in your vehicle and on the stage, and makes every carry in between — home to car, vehicle to venue — much easier.
 
Part of a full system
Sub1 powered bass module is the more compact subwoofer option for the Bose L1 Pro32 system, combining seamlessly via proprietary SubMatch connectivity to form a modular line array system that's easy to pack, carry, and set up. This single-cable connection makes setup so much easier — it allows the system's crossover and EQ to automatically calibrate for optimal sound, and — because power and digital audio are passed through the SubMatch cable — you only need a single power outlet. Just plug in your L1 Pro32 and you're ready to go.
 
The peak of portable PA
With the supreme clarity and output of a 32-driver articulated line array, the L1 Pro32 system fills medium-to-large-sized venues and events like weddings and clubs with full 180-degree sound coverage. A built-in multi-channel mixer offers EQ, reverb, and phantom power, plus Bluetooth® streaming and access to the full library of ToneMatch presets — and the intuitive L1 Mix app places wireless control in your hands.
 
Focused Bass
Stacking multiple Sub1 subwoofers gets you even more bass — and allows you to unleash Cardioid Mode for directional bass performance. Cardioid Mode is ideal for outdoor events and keeping the stage and microphones free of low-frequency feedback. Instead of bass invading your space onstage or upsetting the neighbors, Cardioid Mode focuses bass out front where you want it.
 
Own The Moment
Big bass onstage. Practical portability everywhere else. Get from parking to performing with ease and from setup to setlist in minutes. With a Sub1, you get a subwoofer that goes virtually anywhere and effortlessly fills out your sound.
 
The Features
- Add powerful bass to your portable PA system with low-end range down to 40 Hz
- A unique slim A unique design featuring a unique 7” × 13” high-excursion RaceTrack driver; performance that rivals traditional round drivers with a smaller footprint
- Stack multiple Sub1 subwoofers for even more bass or unleash Cardioid Mode for focused, directional performance that steers the bass out front and decreases feedback 
- Combine seamlessly with Bose L1 Pro32 portable line array via proprietary SubMatch connectivity, which delivers both power and audio over a single cable
- Pair with other powered loudspeakers via line input and output with selectable crossover modes, plus integrated threaded pole mount for use with Bose S1 Pro PA and more