KEF KW2 RX Receiver – Wireless Subwoofer Adapter for XIO

The KEF KW2 RX Receiver enables cable-free integration of subwoofers with the XIO soundbar. Compact and easy to set up, it lets you position a subwoofer wherever needed—whether using KEF models or third-party systems—while maintaining high-res audio performance.

Key Features

• Wireless audio link: Connects XIO soundbar to a subwoofer over 2.4 GHz up to 15 m
• High-res signal: Supports 24‑bit/48 kHz transmission with SNR > 80 dB and THD < 0.2 %
• Compact design: Measures 72×37×31 mm and weighs just 50 g
• Universal subwoofer output: Plugs into KEF subs or external units via analogue/optical jack
• USB‑C powered: Convenient power through USB‑C, no extra adapters needed

Customer Benefits

The KW2 RX offers freedom of placement, letting you set the subwoofer optimally without worrying about cables. It preserves audio fidelity while seamlessly linking to KEF XIO or external subs, enhancing bass impact without clutter.

Quick Specs

• Dimensions: 72 × 37 × 31 mm
• Weight: 50 g
• Wireless: 2.4 GHz band, up to 15 m range
• Audio: 24-bit/48 kHz, SNR > 80 dB, THD < 0.2 %
• Latency: 57 ms
• Power: USB‑C input (5 V/2 A)
• Outputs: KEF proprietary, 3.5 mm analogue, TOSLINK optical

What’s in the Box

• KW2 RX Receiver module
• USB‑C power cable
• TOSLINK optical cable
• 3.5 mm aux-to-RCA cable
• Screws and quick-start guide

Use Cases / Ideal For

Ideal for XIO soundbar users who want a clutter-free sub connection, audiophiles customizing sub placement, or anyone integrating non-KEF subs into their system.

Compatibility

Works natively with KEF subs (KC62, KC92, KF92, Kube) via smart port. Also compatible with third-party subwoofers using analogue or optical input. Pairs wirelessly to XIO’s built-in transmitter.

Pros & Cons

✅ Pros:

• Enables wireless sub placement with maintained audio quality
• Supports high-resolution audio up to 24‑bit/48 kHz
• Compact and USB-powered—minimal setup hassle
• Works with both KEF and third-party subwoofers

⚠️ Cons:

• 2.4 GHz band may be prone to interference in crowded wireless environments
• Latency of 57 ms—minor delay for audio/video sync in rare setups
• Sold individually—needs one per additional subwoofer

The KEF KW2 RX Receiver combines wireless freedom with convenience and performance. It lets you place subwoofers optimally, enhance your XIO or custom system’s bass, and enjoy high-fidelity sound without cable clutter—available now at Soundium.