Informations
Product description
LSX II is a compact active speaker system combining high-fidelity sound, internal amplification, modern streaming, and versatile connectivity. Each speaker is powered and ready to use, offering a full stereo setup without needing a separate amplifier or DAC. With KEF’s signature coaxial Uni-Q driver design and high-resolution support, it aims to deliver rich, balanced and detailed audio in a small footprint — ideal for desktop setups, small to medium rooms, or minimal hi-fi systems.
Key Features
• Active stereo speaker system — no external amplifier required
• Uni-Q coaxial driver array per speaker: coaxial tweeter + mid/bass driver for coherent point-source sound
• Built-in amplifiers (separate for woofers and tweeters) for clean, dynamic output
• Wireless or wired speaker-to-speaker link for flexible setup
• Full streaming and digital connectivity: network, HDMI-ARC, USB-C, optical, Ethernet etc.
• High-resolution audio support (PCM up to 24-bit / 384 kHz, DSD, MQA depending on source)
• Subwoofer output for optional bass extension
• Compact, stylish enclosure suitable for bookshelf, desk or small-room placement
Specifications
| PRODUCT | KEF LSX II Active Speakers (pair) |
| Drive Units (per speaker) | Uni-Q array — 115 mm mid/bass cone + 19 mm aluminium-dome tweeter |
| Amplifier Output (per speaker) | LF driver: 70 W Class D |
| Max SPL (per pair @ 1 m) | 102 dB (nominal) |
| Frequency Response (-6 dB) | 49 Hz – 47 kHz *depends on EQ/settings* |
| Frequency Response (±3 dB) | 54 Hz – 28 kHz *depends on EQ/settings* |
| Nominal Impedance | Active — internal amplification |
| Supported Audio Formats | PCM up to 24-bit/384 kHz, DSD, MQA, standard lossy and lossless formats |
| Connectivity | HDMI-ARC, Optical, USB-C, Ethernet/Wi-Fi, Subwoofer output, Speaker link |
| Wireless | Wi-Fi, Bluetooth, Chromecast, AirPlay 2, UPnP (depending on firmware) |
| Dimensions (per speaker H × W × D) | 240 × 155 × 180 mm |
| Total System Weight (pair) | ~6.8 kg |