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Sonos Arc Ultra — 9.1.4 Atmos · Sound Motion woofers · eARC
Sonos

Sonos Arc Ultra

9.1.4 Atmos · Sound Motion woofers · eARC

92
/ 100
From $999
VS
Sonos Arc Ultra wins by 12
LG SP8YA — $699
LG

LG SP8YA

$699

80
/ 100
From $699
Specdex verdict

Sonos Arc Ultra takes it — here’s why.

In our weighted Specdex score, Sonos Arc Ultra lands at 92 and LG SP8YA at 80. That puts Sonos Arc Ultra ahead by 12 points — a decisive margin driven mostly by its strengths in the categories below.

Pick Sonos Arc Ultra if…

  • ✓Massive bass without a sub
  • ✓9.1.4 channel processing
  • ✓Easy TrueCinema tuning

Pick LG SP8YA if…

  • ✓Dolby Atmos on most
  • ✓One-box simplicity
  • ✓eARC passthrough
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Winner by scenario

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

Design

Sonos Arc Ultra

Compared on the design sub-score

Sonos Arc Ultra leads on design (92 vs 84).

Ease of use

Sonos Arc Ultra

Compared on the ease of use sub-score

Sonos Arc Ultra leads on ease (90 vs 86).

Sound

Sonos Arc Ultra

Compared on the sound sub-score

Sonos Arc Ultra leads on sound (94 vs 80).

Value for money

LG SP8YA

Specdex score per dollar at MSRP

LG SP8YA more score per dollar ($699 vs $999).

Sonos Arc Ultra 92
vs
80 LG SP8YA

Score breakdown

Sonos Arc Ultra
92
sound 94
features 90
design 92
ease 90
LG SP8YA
80
sound 80
features 78
design 84
ease 86

Specs side-by-side

Sonos Arc Ultra versus LG SP8YA — full spec comparison
Spec Sonos Arc Ultra LG SP8YA
Channels
9.1.4
—
Drivers
14 + Sound Motion woofers
—
Connectivity
eARC HDMI, Wi-Fi 6, BT 5.0
—
Atmos
Dolby Atmos
—

Sonos Arc Ultra

Pros
  • +Massive bass without a sub
  • +9.1.4 channel processing
  • +Easy TrueCinema tuning
Cons
  • −No DTS:X
  • −App glitches
  • −Expensive

LG SP8YA

Pros
  • +Dolby Atmos on most
  • +One-box simplicity
  • +eARC passthrough
Cons
  • −Rear surrounds sold separately on some
  • −App quality varies
  • −Cabinet depth needs space

FAQ: Sonos Arc Ultra vs LG SP8YA

Which is better, Sonos Arc Ultra or LG SP8YA? +

Sonos Arc Ultra scores 92 on our weighted rubric — ahead by 12. Your best pick depends on the sub-scores above.

Is Sonos Arc Ultra worth the price? +

At $999, Sonos Arc Ultra delivers a Specdex score of 92 — strongest in sound.

Is LG SP8YA worth the price? +

At $699, LG SP8YA delivers a Specdex score of 80 — strongest in ease.

Does Sonos Arc Ultra or LG SP8YA 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 design, Sonos Arc Ultra or LG SP8YA? +

Sonos Arc Ultra — leads on design (92 vs 84). Compared on the design sub-score.

Which is better for ease of use, Sonos Arc Ultra or LG SP8YA? +

Sonos Arc Ultra — leads on ease (90 vs 86). Compared on the ease of use sub-score.