KEF KW2 RX Receiver

In the Box

Check that the KW2 or any parts are damaged or missed. If this is the case, do not use the product and contact your retailer.

• KW2 unit (x1)
• Optical cable (1 m) (x1)
• USB-C power cable (1 m) (x1)
• 3.5 mm AUX to RCA cable (1 m) (x1)
• Printed materials (x1)
• Machine screws (M3.0 x 20 mm) (x2) - For KC62 / KF92 / Kube MIE / KC92
• Tapping screw (M4.0 x 42 mm) (x1) - For Kube 8b / 10b / 12b

Product Overview

The KW2 RX Receiver is a compact wireless adapter designed to connect subwoofers to the XIO soundbar without wires.

• Top cover
• Bottom cover
• LED indicator: Displays status.
• Pairing button (PA): Used for pairing and resetting.
• USB-C power supply: Connects to power.
• AUX/Optical combo 3.5 mm audio output: For connecting to non-KEF subwoofers.
• Proprietary audio output: For connecting to KEF subwoofers.

It features installation holes for various KEF subwoofer models, including KC62, KF92, Kube MIE, KC92, Kube 8b, 10b, and 12b.

Placement

Ensure the KW2 is placed at least 30 cm (approx. 1 foot) away from wireless transmitting equipment (e.g., Wi-Fi routers, Bluetooth devices) to prevent potential signal interference.

Getting Prepared

Plug your subwoofer into a power source and ensure it is turned off by setting the power switch to the "O" (OFF) position.

Connecting to KEF Subwoofers

For KC62 / KF92 / Kube MIE / KC92

1. Slide the top cover upwards to reveal the installation holes, then gently remove the bottom cover to expose the proprietary audio output.
2. Plug the proprietary audio output into the subwoofer's expansion port. Ensure the pins are correctly inserted and the pairing button (PA) faces upwards.
3. With a screwdriver, tighten the machine screws in the installation holes. (Important: Never use an electric screwdriver to avoid damage.)
4. Slide the top cover back to its original position.

For Kube 8b / 10b / 12b

1. With a screwdriver, remove the original screw from the subwoofer.
2. Slide the top cover upwards to reveal the installation hole, then gently remove the bottom cover to expose the proprietary audio output.
3. Plug the proprietary audio output into the subwoofer's expansion port. Ensure the pins are correctly inserted and the pairing button (PA) faces upwards.
4. With a screwdriver, tighten the tapping screw in the installation hole. (Important: Never use an electric screwdriver to avoid damage.)
5. Slide the top cover back to its original position.

KEF Subwoofer Settings

1. Enable the LFE mode on your subwoofer.
2. Set the subwoofer power switch to the "I" (ON) position.

The LED indicator of KW2 should blink cyan and white.

Connecting to non-KEF Subwoofers with Analogue Input

1. Connect KW2 and your subwoofer using either a 3.5 mm to RCA audio cable or an optical cable.
2. Connect the USB-C power cable to the USB-C power supply.

The LED indicator of KW2 should blink cyan and white.

Power on your subwoofer.

Pairing with XIO

1. Ensure the subwoofer is powered on and the LED indicator of KW2 is blinking cyan and white.
2. Ensure XIO is powered on and not in standby mode.
3. On the back panel of the XIO, press and hold the “BT Pair” button (BP) for 5 seconds. The LED light above the “BT Pair” button will then blink cyan and white.

Alternatively, pairing can be done via the KEF Connect App: navigate to the EQ setting page, select "Do you have a subwoofer connected?", then "Yes", and finally “KW2”. The LED light above the "BT Pair" button will blink cyan and white.

When pairing is successful, the LED indicator of KW2 will become solid cyan. The LED light of XIO will become solid cyan for 3 seconds and then turn off.

Basic LED Indications

KW2 LED Indications

XIO LED Indications

FAQ

1. How to reset KW2?

Press and hold the Pairing button (PA) on KW2 until the LED indicator blinks amber.

2. How to add additional KW2?

1. Double press the "BT PAIR" button (BP) on the back panel of XIO. The LED light above the button will blink cyan and white.
2. When pairing is successful, the LED indicator of KW2 will become solid cyan. The LED light of XIO will become solid cyan for 3 seconds and then turn off.

3. What do these LED indications mean?

Refer to the "Basic LED Indications" section above.

Specifications

Safety Information

Please read the important safety and warranty information. Follow this manual carefully for the best results from your speakers. Read and return the warranty card. Clean with a dry lint-free cloth. Do not use spirit-based cleaners.

Warnings:

• Avoid damp.
• Avoid temperature extremes.
• Avoid direct sunlight.
• Trailing cables are dangerous; secure all cables.
• To reduce the risk of fire or electrical shock, do not expose this appliance to rain or moisture.
• Risk of electric shock: Do not open. No user-serviceable parts inside. Refer servicing to qualified service personnel.
• Danger of explosion if battery is incorrectly replaced. Replace only with the same or equivalent type.
• Warning: Do not ingest the battery (Chemical Burn Hazard). This product contains a coin/button cell battery. If swallowed, it can cause severe internal burns in 2 hours and can lead to death. Keep batteries away from children.

Electrical Safety:

• A combined mains power input lead and country-specific mains plug is provided.
• Check that the local supply voltage matches the rating on the rear panel before connecting.
• The appliance should be connected to a mains socket with a protective earthing connection.

Disposal:

• This product should not be disposed of with other household wastes. Recycle responsibly to promote sustainable reuse of material resources.
• Batteries should never be thrown away or incinerated but disposed of in accordance with local regulations.

FCC & ISED Statements:

This device complies with Part 15 of the FCC Rules and relevant ISED regulations. Operation is subject to conditions that prevent harmful interference. This equipment complies with FCC and IC radiation exposure limits for uncontrolled environments.

Warranty Information

KEF products purchased from an authorized KEF retailer are covered by a warranty. GP Acoustics (UK) Limited and KEF's authorized distributors provide warranty with valid proof of purchase. This warranty is in addition to, and does not detract from, your statutory consumer rights.

For full details, visit www.kef.com/support or contact Customer Service at +44 800 652 2696 (UK) or support@kef.com.

Contact: GP Acoustics (UK) Limited, Eccleston Road, Tovil, Maidstone, Kent, ME15 6QP, UK.

Environmental Labelling of Packaging

The packaging materials are recyclable. Please dispose of them according to local recycling regulations.

KEF Mission

Since 1961, KEF's mission has been to preserve the integrity of sound with minimal intervention, from treble to bass. Experience is everything, and KEF combines its obsession with acoustic authenticity and innovative engineering to create products that speak for themselves.

Listen and believe.