KEF Adds Physical Rear-Speaker Support to XIO
KEF’s XIO soundbar can now grow into a system with physical rear speakers. The November firmware update adds wireless surround support, giving owners a new route to expanding a setup they already have.
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Narrated using Mark Henninger’s authorized AI voice clone.
KEF identifies the LSX II, LSX II LT and Coda W as the initial compatible speaker choices through the KW2 RX receiver. Support for additional models has been announced for later stages. A future compatibility plan should not be treated as a feature available on launch day.
KEF lists XIO firmware 1.5.160, KEF Connect 1.32.0 and version 2.0.0.0 or later for the soundbar transmitter and KW2. A November 6 iOS app update, version 1.32.1, fixes a Coda W update failure and makes surround-related improvements. The rear speakers also need their corresponding surround-capable firmware. Updates roll out gradually, so owners should follow the current setup instructions for every component.
The firmware is free, but an expanded system can require a receiver and a compatible speaker pair. Wireless audio links also do not remove the need to power active speakers. The useful budget calculation is the cost of the complete rear-channel arrangement, especially if the speakers are already in the house.
Adding physical rear channels is a functional change that deserves a careful distinction from the soundbar’s standalone spatial processing. It does not, by itself, establish how well a particular room or listening position will work.
Owners should check the supported-model list and required firmware together before buying extra equipment. This update is most interesting where it makes sensible use of hardware already owned, with a clear accounting of anything still needed.
Amazon listings
As an Amazon Associate I earn from qualifying purchases. The soundbar and speaker pair are separate listings. The KEF rear-channel setup also requires a separate KW2 RX receiver.
KEF XIO soundbar, silver gray (paid link)
KEF LSX II LT speakers, sage green pair (paid link)
