Harman Kardon
Harman Kardon Onyx Studio 8
Smart/Portable · $399
85
/ 100
From $399
VS
Sonos Era 300 · Black wins by 3
Sonos
Sonos Era 300 · Black
Smart/Portable · $449
88
/ 100
From $449
Specdex verdict
Sonos Era 300 · Black takes it — here’s why.
In our weighted Specdex score, Harman Kardon Onyx Studio 8 lands at 85 and Sonos Era 300 · Black at 88. That puts Sonos Era 300 · Black ahead by 3 points — a narrow margin driven mostly by its strengths in the categories below.
Pick Harman Kardon Onyx Studio 8 if…
- ✓Easy multi-room with ecosystem
- ✓App EQ on modern models
- ✓USB-C/AUX input on some
Pick Sonos Era 300 · Black if…
- ✓Easy multi-room with ecosystem
- ✓App EQ on modern models
- ✓USB-C/AUX input on some
Harman Kardon Onyx Studio 8 85
vs 88 Sonos Era 300 · Black
Score breakdown
Harman Kardon Onyx Studio 8
85 sound 85
features 83
design 88
ecosystem 84
Sonos Era 300 · Black
88 sound 88
features 86
design 88
ecosystem 84
Specs side-by-side
| Spec | Harman Kardon Onyx Studio 8 | Sonos Era 300 · Black |
|---|
Harman Kardon Onyx Studio 8
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 · 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: Harman Kardon Onyx Studio 8 vs Sonos Era 300 · Black
Which is better, Harman Kardon Onyx Studio 8 or Sonos Era 300 · Black? +
Sonos Era 300 · Black scores 88 on our weighted rubric — ahead by 3. Your best pick depends on the sub-scores above.
Is Harman Kardon Onyx Studio 8 worth the price? +
At $399, Harman Kardon Onyx Studio 8 delivers a Specdex score of 85 — strongest in design.
Is Sonos Era 300 · Black worth the price? +
At $449, Sonos Era 300 · Black delivers a Specdex score of 88 — strongest in sound.
Does Harman Kardon Onyx Studio 8 or Sonos Era 300 · 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.