Bose Sub2 Portable Powered Bass Module

Overview

The Bose 840917-1100 is a Sub2 portable powered bass module designed to enhance small or medium portable PA systems with deep and confident low-end sound. Featuring a 10 × 18-inch high-excursion neodymium RaceTrack driver that delivers bass down to 37 Hz, it ensures kick drums, synths, and bass guitars have the weight and presence needed for live performances. Its slim enclosure remains easy to transport, making it a practical choice for musicians and event professionals on the move.

Key features

• High-excursion RaceTrack driver that produces powerful bass reaching down to 37 Hz for rich low-frequency impact
• Single-cable SubMatch connection that carries both power and audio, simplifying setup with the Bose L1 Pro32 system
• Stackable design with Cardioid Mode to direct bass toward the audience while reducing stage energy, improving monitoring and minimizing feedback
• Built-in 1000-watt Class-D amplifier delivering ample headroom and clear, punchy sound without needing an external amp
• Line input and output with selectable crossover settings to integrate smoothly with other powered loudspeakers from different brands
• Rugged yet lightweight enclosure designed for frequent transport and road use, resisting scuffs and damage
• Integrated pole mount on top of the cabinet for easy placement of a mid-high speaker at the ideal height without extra hardware

Key specs

• Driver size: 10 × 18-inch neodymium RaceTrack
• Frequency response: down to 37 Hz
• Amplifier power: 1000-watt Class-D
• Connection type: SubMatch single cable for power and audio
• Enclosure: rugged and portable design
• Special features: Cardioid Mode for directional bass control
• Inputs/outputs: line input and output with selectable crossover modes

Connectivity and compatibility

The Sub2 module connects seamlessly to the Bose L1 Pro32 system using a single SubMatch cable that supplies both power and audio, reducing setup complexity and cable clutter. For setups involving other loudspeaker brands, the Sub2 offers line input and output with switchable crossover settings, allowing it to blend well with a variety of powered tops. This flexibility makes it a versatile addition to different PA configurations.

Performance and reliability

With a built-in 1000-watt Class-D amplifier, the Sub2 delivers consistent, punchy bass that maintains clarity even at high volumes. The high-excursion RaceTrack driver ensures low frequencies are reproduced with authority, while the rugged enclosure withstands the rigors of touring and frequent transport. Cardioid Mode enhances stage sound by focusing bass energy toward the audience and reducing unwanted stage noise and feedback, which is especially useful in reverberant venues.

Ideal uses and environments

This bass module suits mobile performers, DJs, corporate presenters, and worship teams who need a portable yet powerful subwoofer for small to medium venues. Its slim profile and integrated pole mount make it easy to set up in diverse spaces, while the ability to stack two units for directional bass control benefits live sound engineers aiming for precise stage monitoring and audience experience. It fits well in setups where quick assembly and reliable bass performance are essential.