KEF BL8b 8″ Outdoor Bollard Subwoofer
The KEF BL8b outdoor bollard subwoofer uses a 200 mm bass driver and external DSP amplification to add dedicated low-frequency support, with weather-resistant construction and flexible mounting for landscaped music systems.
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AED 7,507.50 Inc VAT
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Description
KEF BL8b Outdoor Bollard Subwoofer
The KEF BL8b outdoor bollard subwoofer adds a dedicated bass component to a landscape audio system. Its 200 mm low-frequency driver handles the bass foundation beneath compatible outdoor main speakers, allowing the installation to separate the reproduction of low frequencies from the positioning of the satellites. The bollard enclosure provides a defined form for integrating that bass source into the site.
The specified frequency response is 27 Hz–300 Hz at ±6 dB. A nominal impedance of 4 ohms and sensitivity of 87 dB at 2.83V/1m give the electrical and acoustic references needed for system planning. Nominal coverage is 360 degrees, distributing the low-frequency output around the enclosure's position within the landscape.
The subwoofer requires a KEF Network DSP Amplifier, with 150W recommended amplifier power. A 170 Hz low-pass filter is recommended for integration with the main speakers. These are system configuration requirements, so the amplification and processing should be selected together with the intended speaker layout. The enclosure uses external power amplification rather than housing its own amplifier.
IPX5 protection, UV-resistant construction and an aluminium grille support permanent outdoor placement. Ground-stake and hardscape arrangements provide different installation options. Without its mount, the cabinet measures 771 × 288 × 288 mm and weighs 11.5 kg. The mounting footprint, acoustic position and cable route can therefore be considered as one installation plan, giving the main speakers a separate bass foundation while keeping the outdoor layout coordinated. The separate bass enclosure lets the main speakers remain compact while the subwoofer supplies the larger driver area required for its dedicated low-frequency role.
Features of BL8b
- 200 mm bass driver
- Dedicated outdoor bass reproduction
- 360° nominal coverage
- IPX5 water protection
- UV-resistant construction
- Aluminium grille
- 170 Hz recommended low-pass filter
- KEF Network DSP amplifier integration
Specifications of BL8b
| Product Type | Passive outdoor bollard subwoofer |
| Bass Driver | 200 mm |
| Frequency Response (±6 dB) | 27 Hz–300 Hz |
| Nominal Impedance | 4 ohms |
| Sensitivity (2.83V/1m) | 87 dB |
| Recommended Amplifier Power | 150W |
| Amplification Requirement | KEF Network DSP Amplifier |
| Recommended Low-pass Filter | 170 Hz |
| Coverage | 360° |
| Protection | IPX5 |
| Dimensions without Mount (H × W × D) | 771 × 288 × 288 mm |
| Dimensions with Hardscape Mount | 781 × 288 × 288 mm |
| Dimensions with Ground Stake | 1056 × 288 × 288 mm |
| Weight | 11.5 kg |
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