Sonos
Sonos Era 300
Dolby Atmos · Wi-Fi 6 · Spatial audio
88
/ 100
From $449
VS
KEF LS50 Wireless II · Black wins by 6
KEF
KEF LS50 Wireless II · Black
Smart/Portable · $2799
94
/ 100
From $2,799
Specdex verdict
KEF LS50 Wireless II · Black takes it — here’s why.
In our weighted Specdex score, Sonos Era 300 lands at 88 and KEF LS50 Wireless II · Black at 94. That puts KEF LS50 Wireless II · Black 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 · Black if…
- ✓Easy multi-room with ecosystem
- ✓App EQ on modern models
- ✓USB-C/AUX input on some
Sonos Era 300 88
vs 94 KEF LS50 Wireless II · Black
Score breakdown
Sonos Era 300
88 sound 90
features 88
design 92
ecosystem 86
KEF LS50 Wireless II · Black
94 sound 94
features 92
design 88
ecosystem 84
Specs side-by-side
| Spec | Sonos Era 300 | KEF LS50 Wireless II · Black |
|---|---|---|
| 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 · Black
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 · Black
Which is better, Sonos Era 300 or KEF LS50 Wireless II · Black? +
KEF LS50 Wireless II · Black 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 · Black worth the price? +
At $2,799, KEF LS50 Wireless II · Black delivers a Specdex score of 94 — strongest in sound.
Does Sonos Era 300 or KEF LS50 Wireless II · Black 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.