Product Overview
The Bose 251 Outdoor Environmental Speakers are engineered to deliver high-quality audio specifically for outdoor environments. Their Articulated Array speaker design ensures a broad and consistent sound field. These speakers are built to withstand various outdoor conditions, including exposure to sunlight, rain, heat, ice, salt, and water, ensuring reliable and long-lasting performance. The unique multi-chambered enclosure design minimizes audible distortion from low frequencies, providing clear and natural sound. Each speaker unit incorporates a 5.25-inch woofer.
Package Contents
- Bose 251 Outdoor Environmental Speakers (Pair)
- Self-Adhesive Rubber Feet
- 4 Knobs
- Mounting Hardware
- 16 AWG Speaker Wire (100' Spool)
Setup and Installation
Speaker Placement
For optimal sound distribution, position the speakers to create a wide, consistent sound field across your listening area. Common mounting locations include walls on decks, patios, gardens, or pool areas.

This image shows a single Bose 251 Outdoor Environmental Speaker. The speaker features a durable black finish and a curved design, optimized for outdoor sound dispersion.

A pair of Bose 251 Outdoor Environmental Speakers, presented together. These speakers are designed to be used as a stereo pair for balanced outdoor audio.
Mounting the Speakers
Utilize the provided mounting hardware to securely attach the speakers to a suitable, sturdy surface. Ensure the chosen mounting location can adequately support the weight of the speakers and is capable of withstanding local environmental conditions.

This image illustrates two Bose 251 Outdoor Environmental Speakers mounted on the exterior of a building, positioned under an overhang for protection and optimal sound projection.

An example of Bose 251 Outdoor Environmental Speakers installed on a house, providing audio for an outdoor gathering. The speakers are designed to blend with outdoor aesthetics.
Wiring Connection
Connect the speakers to your audio amplifier using the included 16 AWG speaker wire. It is crucial to ensure correct polarity (+ to + and - to -) for each speaker to prevent audio phase issues and ensure proper sound reproduction.

A roll of 16 AWG speaker wire, featuring red and black insulation for easy polarity identification. This wire is used to connect the speakers to an audio source.
Operation
Once properly connected to an amplifier, the Bose 251 speakers will reproduce audio from your selected source. Adjust the volume and other audio settings directly through your amplifier or audio system. These speakers are designed for continuous and reliable outdoor use.
Maintenance
The Bose 251 speakers are constructed for durability in outdoor conditions. Periodically inspect the speaker grilles and mounting hardware for any accumulated debris or signs of wear. Clean the speaker surfaces with a soft, damp cloth. Avoid using harsh chemicals or abrasive cleaning agents, as these can damage the finish. Ensure any drainage holes (if present) remain clear to prevent water accumulation.
Troubleshooting
No Sound
- Verify all speaker wire connections are secure and correctly polarized (+ to + and - to -).
- Check the amplifier's power status and ensure the correct input source is selected.
- Confirm that the audio source is playing and its volume level is adequately set.
Distorted Sound
- Reduce the volume level on your amplifier to prevent overdriving the speakers.
- Inspect speaker wire connections for any looseness or fraying.
- Ensure the amplifier's output power does not exceed the speaker's maximum input rating (100 Watts).
Uneven Sound Distribution
- Review the speaker placement and adjust their angles or positions as necessary to optimize sound coverage across your listening area.
Technical Specifications
| Feature | Detail |
|---|---|
| Brand | Bose |
| Model Number | 251 |
| Model Name | 251 Environmental Speakers |
| Speaker Type | Outdoor, Woofer |
| Speaker Maximum Output Power | 100 Watts |
| Frequency Response | 200 KHz |
| Connectivity Technology | Speaker Wires |
| Audio Output Mode | Stereo |
| Mounting Type | Deck, Wall Mount |
| Woofer Diameter | 5.25 Inches |
| Color | Black |
| Is Waterproof | TRUE |
| Warranty Type | Limited |
| Control Method | Touch |
| Connectivity Protocol | Wired |
| Audio Driver Type | Dynamic Driver |
| Number of Audio Channels | 2.0 |
| Item Weight | 45 Pounds |
| Compatible Devices | Laptop, Desktop, Television, Projector |
| Power Source | Corded Electric |
| UPC | 192223224032 |
Warranty Information
The Bose 251 Outdoor Environmental Speakers are covered by a limited warranty. For comprehensive details regarding warranty terms, conditions, and duration, please refer to the official Bose website or contact their customer support directly.
Customer Support
For further assistance, technical support, or service inquiries related to your Bose 251 Outdoor Environmental Speakers, please visit the official Bose support website. When contacting support, have your product model number (251) and purchase information readily available to expedite service.





