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KEF LS50 Wireless II · Sunset Red — Smart/Portable · $2799
KEF

KEF LS50 Wireless II · Sunset Red

Smart/Portable · $2799

94
/ 100
From $2,799
VS
KEF LS50 Wireless II · Sunset Red wins by 6
Sonos Era 300 — Dolby Atmos · Wi-Fi 6 · Spatial audio
Sonos

Sonos Era 300

Dolby Atmos · Wi-Fi 6 · Spatial audio

88
/ 100
From $449
Specdex verdict

KEF LS50 Wireless II · Sunset Red takes it — here’s why.

In our weighted Specdex score, KEF LS50 Wireless II · Sunset Red lands at 94 and Sonos Era 300 at 88. That puts KEF LS50 Wireless II · Sunset Red ahead by 6 points — a decisive margin driven mostly by its strengths in the categories below.

Pick KEF LS50 Wireless II · Sunset Red if…

  • ✓Easy multi-room with ecosystem
  • ✓App EQ on modern models
  • ✓USB-C/AUX input on some

Pick Sonos Era 300 if…

  • ✓Genuine Atmos from one box
  • ✓Sonos ecosystem polish
  • ✓USB-C line-in
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Winner by scenario

Derived from the sub-score breakdown · not a separate test

Sound

KEF LS50 Wireless II · Sunset Red

Compared on the sound sub-score

KEF LS50 Wireless II · Sunset Red leads on sound (94 vs 90).

Features

KEF LS50 Wireless II · Sunset Red

Compared on the features sub-score

KEF LS50 Wireless II · Sunset Red leads on features (92 vs 88).

Design

Sonos Era 300

Compared on the design sub-score

Sonos Era 300 leads on design (92 vs 88).

Value for money

Sonos Era 300

Specdex score per dollar at MSRP

Sonos Era 300 more score per dollar ($449 vs $2,799).

KEF LS50 Wireless II · Sunset Red 94
vs
88 Sonos Era 300

Score breakdown

KEF LS50 Wireless II · Sunset Red
94
sound 94
features 92
design 88
ecosystem 84
Sonos Era 300
88
sound 90
features 88
design 92
ecosystem 86

Specs side-by-side

KEF LS50 Wireless II · Sunset Red versus Sonos Era 300 — full spec comparison
Spec KEF LS50 Wireless II · Sunset Red Sonos Era 300
Drivers
—
6 (4 tweeters, 2 woofers)
Connectivity
—
Wi-Fi 6, BT 5.0, USB-C
Voice
—
Amazon Alexa
Power
—
Class-D amps

KEF LS50 Wireless II · Sunset Red

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

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

FAQ: KEF LS50 Wireless II · Sunset Red vs Sonos Era 300

Which is better, KEF LS50 Wireless II · Sunset Red or Sonos Era 300? +

KEF LS50 Wireless II · Sunset Red scores 94 on our weighted rubric — ahead by 6. Your best pick depends on the sub-scores above.

Is KEF LS50 Wireless II · Sunset Red worth the price? +

At $2,799, KEF LS50 Wireless II · Sunset Red delivers a Specdex score of 94 — strongest in sound.

Is Sonos Era 300 worth the price? +

At $449, Sonos Era 300 delivers a Specdex score of 88 — strongest in design.

Does KEF LS50 Wireless II · Sunset Red or Sonos Era 300 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.

Which is better for sound, KEF LS50 Wireless II · Sunset Red or Sonos Era 300? +

KEF LS50 Wireless II · Sunset Red — leads on sound (94 vs 90). Compared on the sound sub-score.

Which is better for features, KEF LS50 Wireless II · Sunset Red or Sonos Era 300? +

KEF LS50 Wireless II · Sunset Red — leads on features (92 vs 88). Compared on the features sub-score.