Use two HDMI sound devices on one TV and easily switch between them
AX421 HDMI eARC Switch 1 TV x 2 Soundbar is backordered and will ship as soon as it is back in stock.
Free delivery within Germany for orders over €39, under €4.99. Receive your order in 1-3 working days via DHL or DPD.
For deliveries within Europe we ship free of charge for orders over 150 €, with delivery within 5 days.
You will receive the shipping status conveniently via email with a tracking link.
To receive your shipment at a DHL Packstation , please include your first and last name, your postal code and the Packstation in the delivery address.
You can find further information about shipping here .
Buy without risk : easy return process and full right of return in case of dissatisfaction.
You have a 30-day right of return with us.
In the event of a return, we will refund the costs or arrange for the return to be free of charge. Further information on returns or refunds .
FeinTech is a German company based in the Spreewald. We stand for innovative technology and personal service - if you have any questions or problems, we are there for you. Contact us by phone or email - we will help you quickly and easily.
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AX421 HDMI eARC Switch 1 TV x 2 Soundbar
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The AX421 allows for easy switching between two sound systems with HDMI-ARC or HDMI-eARC connections—ideal for a soundbar, AV receiver, or headphone stand. Perfect for anyone who wants more flexibility in their home theater setup.
The AX421 is the first device of its kind that can switch a TV's ARC/eARC audio output between two different sound systems. Whether you want to switch between a soundbar and a headphone base or between an AV receiver and a D/A converter, the AX421 keeps your setup flexible and convenient.
The AX421 supports both HDMI-ARC and HDMI-eARC, allowing you to use all modern audio formats – from simple stereo to Dolby Atmos. HDMI-eARC supports all audio formats, while HDMI-ARC supports only stereo, Dolby Digital, and DTS.
Important: Connect your preferred audio device to the AX421's HDMI 1 port. If an eARC-enabled device is connected there and recognized by the TV first, the switch will automatically use eARC.
If the second device only supports ARC, higher audio formats may not play correctly. To avoid this, connect the ARC device to HDMI 1 and restart (briefly disconnect the power) after connecting so the TV can re-detect the devices.
The switch automatically switches between the connected sound systems depending on which device is turned on – provided the AX421 is powered via the optional USB port. This allows you to easily switch between a soundbar and an AV receiver, for example, without having to unplug cables.
In addition to automatic switching, you can also deactivate the function and manually switch between the two sound devices to have full control over your setup.
With the optional USB power supply, the Switch synchronizes the TV's power on and off with the last active sound system. This way, the TV and sound system turn on simultaneously. Without USB power, the sound system must be turned on separately.
Important note: Some sound systems also turn off the TV when turned off. This behavior can be adjusted on many devices using settings such as HDMI Link or HDMI Control.
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