Sonos
Sonos Era 300
Dolby Atmos · Wi-Fi 6 · Spatial audio
88
/ 100
From $449
VS
KEF LS50 Wireless II wins by 6
KEF
KEF LS50 Wireless II
Smart/Portable · $2799
94
/ 100
From $2,799
Specdex verdict
KEF LS50 Wireless II takes it — here’s why.
In our weighted Specdex score, Sonos Era 300 lands at 88 and KEF LS50 Wireless II at 94. That puts KEF LS50 Wireless II ahead by 6 points — a decisive margin driven mostly by its strengths in the categories below.
Pick Sonos Era 300 if…
- ✓Genuine Atmos from one box
- ✓Sonos ecosystem polish
- ✓USB-C line-in
Pick KEF LS50 Wireless II if…
- ✓Easy multi-room with ecosystem
- ✓App EQ on modern models
- ✓USB-C/AUX input on some
Score breakdown
Sonos Era 300
88 sound 90
features 88
design 92
ecosystem 86
KEF LS50 Wireless II
94 sound 94
features 92
design 88
ecosystem 84
Specs side-by-side
Spec
Sonos Era 300
KEF LS50 Wireless II
Drivers
6 (4 tweeters, 2 woofers)
—
Connectivity
Wi-Fi 6, BT 5.0, USB-C
—
Voice
Amazon Alexa
—
Power
Class-D amps
—
Sonos Era 300
Pros
- +Genuine Atmos from one box
- +Sonos ecosystem polish
- +USB-C line-in
Cons
- −Sonos app issues persist
- −Needs Atmos-mastered tracks
- −Bass limits vs larger rivals
KEF LS50 Wireless II
Pros
- +Easy multi-room with ecosystem
- +App EQ on modern models
- +USB-C/AUX input on some
Cons
- −Brand ecosystem lock-in
- −Subscription features on some
- −Bass limits at lower sizes
FAQ: Sonos Era 300 vs KEF LS50 Wireless II
Which is better, Sonos Era 300 or KEF LS50 Wireless II? +
KEF LS50 Wireless II scores 94 on our weighted rubric — ahead by 6. Your best pick depends on the sub-scores above.
Is Sonos Era 300 worth the price? +
At $449, Sonos Era 300 delivers a Specdex score of 88 — strongest in design.
Is KEF LS50 Wireless II worth the price? +
At $2,799, KEF LS50 Wireless II delivers a Specdex score of 94 — strongest in sound.
Does Sonos Era 300 or KEF LS50 Wireless II last longer? +
Based on our long-term update and support ratings, both ship with multi-year support. Battery and reliability scores are visible in the breakdown above.