Wireless & smart speakers
KEF LS50 Wireless II Active Speaker System – Carbon Black Pair
The Carbon Black KEF LS50 Wireless II is a complete active stereo speaker pair with streaming and amplification built in. Each speaker uses a 12th-generation Uni-Q driver array with Metamaterial Absorption Technology, driven by separate 280-watt low-frequency and 100-watt high-frequency amplifiers. AirPlay 2, Google Cast and Bluetooth provide wireless playback options, while HDMI eARC, optical, coaxial and analogue connections accommodate wired sources. Wireless does not mean cable-free: both the primary and secondary speakers require mains power. The speakers can communicate wirelessly with all sources resampled to 24-bit/96 kHz PCM, or use an interspeaker cable for 24-bit/192 kHz PCM operation. These link rates are distinct from network file acceptance up to 24-bit/384 kHz. KEF Connect handles setup and listening adjustments. No separate stereo amplifier is required, and subwoofer outputs allow bass reinforcement to be added. The system is supplied as two speakers rather than one individual cabinet.
- Complete active stereo pair
- 280 W LF plus 100 W HF amplification per speaker
- AirPlay 2, Google Cast and Bluetooth
- HDMI eARC television connection
- Wireless or wired interspeaker link; both speakers need mains
Handling and delivery: 2–5 days via DHL or FedEx. Free UK delivery.
- Manufacturer reference
- SP4025BB
- EAN / GTIN
- 0637203046926
Technical specifications
- finish
- Carbon Black
- quantity
- Pair: primary and secondary speakers
- amplificationPerSpeaker
- LF 280 W Class D; HF 100 W Class A/B
- HDMI
- eARC
- wirelessInterspeaker
- All sources resampled to 96 kHz/24-bit PCM
- wiredInterspeaker
- All sources resampled to 192 kHz/24-bit PCM
- networkResolution
- Up to 384 kHz/24-bit; source-dependent
- frequencyResponse
- 45 Hz–28 kHz (±3 dB), measured at 85 dB/1 m; EQ-dependent
- mains
- Both speakers require power; 100–240 V AC, 50/60 Hz
