KEF XIO vs Polk Audio MagniFi Mini AX

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XIO compared with MagniFi Mini AX

	KEFXIO	Polk AudioMagniFi Mini AX
Overview
Released
Released	July 2025	March 2022
Sound
Type
Type	Soundbar	Soundbar
Channels
Channels	5.1.2	–
Dolby Atmos
Dolby Atmos	Yes	Yes
Drivers
Drivers	Six 50 mm Uni-Q MX, two 50 mm full-range and four 50 × 180 mm P185 bass drivers with VECO control	Two 19 mm tweeters and three 51 mm midrange drivers for left, centre and right channels; included wireless subwoofer has a down-firing 127 × 178 mm driver
Amplifiers
Amplifiers	Twelve Class D amplifiers; 820 W instantaneous total power rating	–
Frequency response
Frequency response	34 Hz–20 kHz (±3 dB, measured at 85 dB/1 m); maximum SPL 102 dB at 1 m	–
Audio formats
Audio formats	Dolby Atmos, DTS:X, Sony 360 Reality Audio and MPEG-H	PCM; Dolby Digital, Dolby Digital Plus, Dolby TrueHD and Dolby Atmos; DTS, DTS-HD Master Audio, DTS:X and DTS Virtual:X
Room tuning
Room tuning	Intelligent Placement Technology; Default, Movie, Music, Direct, Dialogue and Night modes	Fourth-generation Stereo Dimensional Array (SDA) technology and 3D audio mode create virtual width and height; no up-firing height drivers. VoiceAdjust changes dialogue level; night mode limits bass and dynamics.
Connections
Wi-Fi
Wi-Fi	Yes	Yes
Bluetooth
Bluetooth	Yes	Yes
AirPlay
AirPlay	Yes	Yes
HDMI eARC
HDMI eARC	Yes	Yes
Voice assistants
Voice assistants	None	None
Wi-Fi
Wi-Fi	802.11a/b/g/n/ac/ax; 2.4, 5 and 6 GHz	802.11a/n/ac
Bluetooth
Bluetooth	Bluetooth 5.3	Bluetooth 5.0
Ports
Ports	HDMI 2.1 eARC, optical, service USB-C, Ethernet and RCA subwoofer output; no HDMI input	One HDMI eARC/ARC input; digital optical; 3.5 mm analogue input; USB-A for firmware updates only; no HDMI video passthrough
Streaming
Streaming	AirPlay, Google Cast, UPnP, Spotify Connect, Tidal Connect and regional in-app services	Apple AirPlay 2; Chromecast Audio; Spotify Connect; Bluetooth
Multi-room
Multi-room	Optional KW2 receiver for compatible wireless subwoofers. KEF still lists wireless rear-speaker support as a future firmware update.	Optional SR2 wireless surround speakers; supplied subwoofer pairs automatically, with a stated maximum wireless separation of 9 m
App
App	KEF Connect	–
Design
Weight
Weight	10.5 kg	–
Controls
Controls	Top-panel power, source, mute and volume buttons with source, Wi-Fi, volume and codec indicators; supplied infrared remote with playback, source and customisable favourite and sound-profile buttons	Soundbar buttons and supplied remote; OLED display. No built-in voice assistant (Tom’s Guide); compatible external Google Home devices can control Chromecast playback.
Mounting
Mounting	Supplied wall-mounting kit and template	–
Size
Size	1210 × 70 × 165 mm (width × height × depth)	Soundbar 366 × 104 × 79 mm; subwoofer 182 × 396 × 371 mm, W × D × H. Weight is not published in the maker’s specification table.
Colours
Colours	Silver Grey or Slate Black	Black
In the box
In the box	Soundbar, remote, AAA batteries, 2 m HDMI cable, 2 m power cable, wall-mounting template and kit, and printed materials	Soundbar, wireless subwoofer, remote, two AAA batteries, soundbar power supply and cord, subwoofer power cord, HDMI cable and printed guides. The contemporary maker release, reproduced by AV NIRVANA, states availability beginning 15 March 2022; its same-day report confirms it was available.