Bose Sub 1 Powered Bass Module
- Driver Size: 12 inches
- Power: 1200 watts
- Connectivity: XLR
- Brand Tech: Bose
Last refreshed Aug 4, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A high output, XLR fed bass module built more for live sound and portable PA duty than for a standard home theater receiver hookup with RCA subwoofer output.
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ASIN: B08QZ3D9LDModel: 840918-1100Category: Subwoofers
Overview
A freestanding, black powered subwoofer built around a 12 inch driver and rated at 1200 watts, with XLR connectivity rather than a home AVR's typical RCA sub-out. That input choice points to live sound and PA use as much as home theater.
XLR is the connector used by mixers, PA systems and pro audio gear, not the RCA or single subwoofer cable most home theater receivers use, so this Bose unit reads as professional or portable sound equipment being catalogued under Home Theater Subwoofers. At 1200 watts and 12 inches, the driver is sized to move real air in a larger room or venue rather than just filling in low end behind a TV. Its footprint, roughly 21 by 10 by 21 inches, and 39.8 lb weight suit freestanding placement, not a bookshelf.
- 12 inch driver, 1200W rating
- XLR input connectivity
- Freestanding black cabinet
- 39.8 lb, roughly 21 x 10 x 21 in
Who it's for
This fits someone running a portable PA, band setup or larger room that needs XLR level bass reinforcement, not a typical living room 5.1 or 7.1 system driven from a receiver's LFE output. Home theater buyers expecting a plug and play RCA subwoofer for their AVR should check the input type first.
Pros and cons
- High output 1200W, 12 inch driver
- Balanced XLR input resists noise over long runs
- Freestanding build suits larger rooms or venues
- XLR input, not compatible with typical home AVR sub-out
- Heavy and large for a small room
Performance notes
The 12 inch driver and 1200 watt rating give this unit enough output to cover a room well beyond a typical living room, which lines up with PA and live sound use rather than a movie night companion. XLR input is balanced and less prone to noise over longer cable runs than consumer RCA, suiting stage and venue setups where cables travel farther. Freestanding mounting and the 39.8 lb build keep it stable on a floor rather than shelf mounted.
Specifications
| Brand | Bose |
|---|---|
| Model | 840918-1100 |
| Dimensions & fit | |
| Driver Size | 12 incheshigher than 51% of 38 subwoofers |
| Weight | 39.8 poundshigher than 80% of 56 subwoofers |
| Dimensions | 20.9 × 9.8 × 20.9 inches |
| Dimensions | 20.87 x 9.84 x 20.87 in |
| Power & efficiency | |
| Power | 1200 wattshigher than 97% of 40 subwoofers |
| Construction & materials | |
| Color | Black |
| Compatibility & installation | |
| Connectivity | XLR |
| Mounting | Freestanding |
| Other details | |
| Brand Tech | Bose |
| Speaker Type | Woofer |
Closest rivals on specs
Rockville BASS BLASTER 12 Subwoofer- Power 1200 vs 800 watts (+50%)
- Weight 39.8 vs 44.7 pounds (-11%)
Klipsch Reference Premiere RP-1200SW Subwoofer 12 Inch- Power 1200 vs 800 watts (+50%)
- Weight 39.8 vs 31.3 pounds (+27%)
Klipsch Sub-12HG Synergy Subwoofer 12 Inch- Power 1200 vs 600 watts (+100%)
Frequently asked questions
Does the Bose 840918-1100 connect to a home receiver?
It uses an XLR input, which most home AV receivers do not provide directly, so it suits PA or pro audio setups better than a typical home theater receiver.
What size driver does it use?
A 12 inch woofer.
How much does it weigh?
About 39.8 lb.