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KEF KW1 Wireless Subwoofer Adapter Kit BLACK
The KEF KW1 Wireless Subwoofer Adapter Kit provides a convenient, high-performance solution for connecting compatible KEF subwoofers without running long audio cables across the room. Consisting of a compact wireless transmitter and receiver, the KW1 allows greater freedom in subwoofer placement while maintaining the detail, impact and precision of low-frequency audio reproduction.
Using advanced digital wireless technology operating in the 5.2 GHz and 5.8 GHz frequency bands, the KW1 transmits high-resolution audio at up to 24-bit/48 kHz. With a line-of-sight transmission range of up to 30 metres (100 feet), latency below 17 milliseconds and intelligent radio frequency selection, the system delivers reliable wireless audio for music and home theatre applications.
Designed for seamless integration with compatible KEF equipment, the KW1 supports KEF Kube 8b, Kube 10b, Kube 12b and KF92 subwoofers, as well as systems using KEF LSX, LS50 Wireless and LS50 Wireless II speakers. The discreet Black transmitter and receiver are engineered to integrate neatly into an entertainment system without drawing attention to themselves.
High-Resolution Wireless Audio Transmission
The KW1 uses a dedicated digital wireless connection to deliver audio at 24-bit/48 kHz resolution. Operating in the 5.2 GHz and 5.8 GHz frequency bands, the system provides the bandwidth required for detailed low-frequency reproduction without the need for a conventional subwoofer signal cable.
Its wireless audio architecture is designed to preserve the dynamics, clarity and impact of music and movie soundtracks while allowing the subwoofer to be positioned independently of the main audio equipment.
Flexible Subwoofer Placement
Conventional subwoofer installations often require long RCA cables between the amplifier and subwoofer, limiting placement options or creating visible cable runs. The KW1 eliminates this restriction by transmitting the audio signal wirelessly between its transmitter and receiver.
With an operating distance of up to 30 metres (100 feet) under line-of-sight conditions, the system provides flexibility for positioning a compatible subwoofer where it performs best acoustically and integrates naturally into the room.
Advanced Radio Frequency Selection
The KW1 incorporates an advanced radio frequency selection algorithm designed to identify a suitable wireless channel and maintain dependable communication between the transmitter and receiver.
Selectable 5.2 GHz and 5.8 GHz operation helps the system manage wireless transmission conditions, while data encryption protects the communication link during normal operation.
Ultra-Low Latency Performance
Accurate timing is essential for proper integration between a subwoofer and the main loudspeakers. The KW1 is designed with transmission latency below 17 milliseconds, allowing wireless low-frequency audio to remain closely synchronized with the rest of the sound system.
Its frequency response of 10 Hz to 20 kHz ensures that the wireless connection can accommodate the full range of audio frequencies required for subwoofer applications.
Compact Transmitter and Receiver
The KW1 system consists of two discreet components. The compact transmitter connects to the audio system and receives power through a 5V USB connection. The receiver connects directly to the expansion port of a compatible KEF subwoofer and receives its power through that connection.
This arrangement minimizes additional wiring and, in compatible installations, eliminates the need for a separate power adapter at the subwoofer receiver.
Expand to a Dual-Subwoofer System
The KW1 can also support a second compatible KEF subwoofer through the addition of an optional KW1 RX receiver, sold separately. A single KW1 transmitter can send the same wireless audio signal to two receivers, allowing two subwoofers to operate from one source.
Using two properly positioned subwoofers can help achieve more consistent bass distribution throughout a listening room, improving low-frequency performance across multiple seating positions.
Designed for Compatible KEF Systems
The KW1 Wireless Subwoofer Adapter Kit is designed for integration with KEF Kube 8b, Kube 10b, Kube 12b and KF92 subwoofers. It is also suitable for use in systems incorporating KEF LSX, LS50 Wireless and LS50 Wireless II loudspeakers.
The combination of high-resolution digital transmission, compact hardware and straightforward pairing makes the KW1 a practical solution for creating a clean, flexible wireless subwoofer installation.
Features:
- Wireless subwoofer adapter kit with transmitter and receiver
- Eliminates the need for a long audio signal cable between compatible equipment and subwoofer
- 24-bit/48 kHz high-resolution digital audio transmission
- Dual-band wireless operation at 5.2 GHz and 5.8 GHz
- Maximum wireless range of 30 metres (100 feet) with line of sight
- Advanced radio frequency selection algorithm for reliable communication
- Low-latency transmission of less than 17 milliseconds
- Frequency response of 10 Hz to 20 kHz
- Signal-to-noise ratio greater than 80 dB
- Digital wireless transmission with data encryption
- Compact transmitter powered through a 5V USB connection
- Receiver powered directly by the compatible KEF subwoofer expansion port
- Supports an optional second KW1 RX receiver for dual-subwoofer installations
- Compatible with KEF Kube 8b, Kube 10b, Kube 12b and KF92 subwoofers
- Suitable for systems using KEF LSX, LS50 Wireless and LS50 Wireless II speakers
- Discreet Black transmitter and receiver design
Specifications:
General
- Brand: KEF
- Model: KW1
- Product Type: Wireless Subwoofer Adapter Kit
- System Configuration: Transmitter and Receiver
- Colour: Black
- Wireless Technology: Digital RF Audio Transmission
Wireless Audio Performance
- Radio Frequencies: 5.2 GHz and 5.8 GHz
- Audio Resolution: 24-bit/48 kHz
- Frequency Response: 10 Hz - 20 kHz
- Wireless Latency: Less Than 17 ms
- Maximum Link Distance: 30 m (100 ft), Line of Sight
- Signal-to-Noise Ratio: Greater Than 80 dB
- Total Harmonic Distortion: Typically -90 dB
- Wireless Channel Management: Advanced RF Selection Algorithm
- Wireless Security: Data Encryption
Radio Frequency Transmission
- Frequency Band 1: 5150 - 5250 MHz
- Frequency Band 1 RF Output Power: Up to 2 dBm
- Frequency Band 2: 5725 - 5850 MHz
- Frequency Band 2 RF Output Power: Up to 7 dBm
Transmitter
- Component: KW1 TX Transmitter
- Audio Input Level: 2V
- Power Input: 5V DC, 1A
- Power Connection: USB
- Wireless Frequencies: 5.2 GHz / 5.8 GHz
Receiver
- Component: KW1 RX Receiver
- Audio Output Level: 2V
- Power Source: Compatible KEF Subwoofer Expansion Port
- Wireless Frequencies: 5.2 GHz / 5.8 GHz
- Additional Receiver Support: Optional Second KW1 RX Receiver (Sold Separately)
Compatibility
- Compatible KEF Subwoofers: Kube 8b, Kube 10b, Kube 12b, KF92
- Compatible KEF Wireless Speaker Systems: LSX, LS50 Wireless, LS50 Wireless II
- Dual-Subwoofer Capability: One Transmitter with Two Receivers
- Second Receiver: KEF KW1 RX (Optional, Sold Separately)
Dimensions
- Transmitter Dimensions (H x W x D): 21.4 x 72 x 79.5 mm (0.84 x 2.83 x 3.13")
- Receiver Dimensions (H x W x D): 27 x 37 x 72 mm (1.06 x 1.46 x 2.83")
What's in the Box:
- 1 x KEF KW1 Wireless Transmitter
- 1 x KEF KW1 Wireless Receiver
Product Details
- KEF KW1
-
Brand New : Factory Sealed
- UPC : 637203046650
- EFLC : 17356
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Warranty
Factory WarrantyReturns
Easy Returns
- 30-day return window on eligible items
- Full refund issued in accordance with our return policy
KEF focuses on sound-first products built for music and home theater listening, where clarity, balance, and real-world usability matter. We've been carrying KEF since 2026.
Explore our current KEF selection and best sellers. We offer both new and open-box items, and everything is clearly marked. Popular categories include Subwoofers, Centers & Surrounds, In-Wall & In-Ceiling Speakers.
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KEF KW1 Wireless Subwoofer Transmitter and Receiver Kit