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  3. Muo vs ULT FIELD 5

KEF Muo vs Sony ULT FIELD 5

What Muo does better (0) and where ULT FIELD 5 wins (3) — every spec side by side.

KEF Muo
KEF · 2025Muo
0 advantages≈ $210
vs
Sony ULT FIELD 5
Sony · 2025ULT FIELD 5
8.2Score
3 advantages≈ $170
Higher score
6.7Build & features5.0
Dimensions

Size comparison

MuoULT FIELD 5
82 × 21659320 × 144125
MuoULT FIELD 5Difference
Height216 mm144 mm+72 mm
Width82 mm320 mm−238 mm
Depth59 mm125 mm−66 mm

Drawn to the same scale from the official dimensions (front and side).

Why is Muo better than ULT FIELD 5?

Muo has no measurable advantages in this pair.

Why is ULT FIELD 5 better than Muo?

  1. Battery life24 h vs 25 h+4%
  2. Output power40 W vs 50 W+25%
  3. Lowest frequency43 Hz vs 20 Hz2.2×
Specifications

Side by side

KEF MuoKEF Muo≈ $210
Sony ULT FIELD 5Sony ULT FIELD 5≈ $1708.2
Sound
Output power40 W50 W
Speaker channels—2.0
Channel count—2
Lowest frequency43 Hz20 Hz
Highest frequency20,000 Hz20,000 Hz
Spatial / 3D audio—Yes
Hi-Res AudioYesYes
Adjustable equaliser—Yes
Stereo—Yes
Battery & charging
Battery life24 h25 h
Charging time—3.5 h
Power bank function—Yes
Mains powered—No
Battery powered (portable)YesYes
Connectivity
WirelessYesYes
Bluetooth version5.45.3
Bluetooth codecs—LDAC, AAC, SBC
Hi-res codec (LDAC / aptX HD / LHDC)—Yes
aptX—No
LDAC—Yes
Multipoint (two devices)—Yes
USB-C—Yes
USB audioYes—
3.5 mm jack / AUX—Yes
Smart & streaming
Companion app—Yes
Design & build
Weight—3,300 g
Width82 mm320 mm
Height216 mm144 mm
Depth59 mm125 mm
Protection ratingIP67IP67
Water resistance (IPx)IPx7IPx7
Dust protection (IP)66
Features
Hands-free callsYes—
Party / stereo pairingYesYes
Light effects—Yes
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