Sonos
Sonos Arc Ultra
$999
Released 2024-11
Best Soundbars · head-to-head
Sonos Arc Ultra vs Denon DHT-S517
A sourced, side-by-side comparison. Denon DHT-S517 is cheaper at $499. Every spec and price links to its source.
Denon
Denon DHT-S517
$499Cheaper
Released 2022
Which is better: the Sonos Arc Ultra or Denon DHT-S517?
On the specs we track, they're closely matched. The Denon DHT-S517 is the cheaper at $499.
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Full spec sheet
✓ marks the stronger figure where "more" — or "less", for price and weight — is unambiguously better.
| Spec | Sonos Arc Ultra | Denon DHT-S517 |
|---|---|---|
| US price | $999 | $499 |
| Brand | Sonos | Denon |
| Released | 2024-11 | 2022 |
| Channels | 9.1.4 | 3.1.2 |
| Total watts | — | — |
| Dolby atmos | Yes | Yes |
| Dts x | No | No |
| Wireless sub | No | Yes |
| Rear speakers | No | No |
| HDMI earc | Yes | Yes |
| Voice assistant | Sonos Voice Control, Amazon Alexa | none |
| Release | 2024-11 | 2022 |
Sources — Sonos Arc Ultra: digitaltrends.com (verified 2026-06-15). Denon DHT-S517: denon.com (verified 2026-06-15).
What's the difference between the Sonos Arc Ultra and Denon DHT-S517?
Where the two actually differ on the specs we track (3 of 8). Matching specs are omitted.
- Channels: Sonos Arc Ultra 9.1.4 vs Denon DHT-S517 3.1.2
- Wireless sub: Sonos Arc Ultra false vs Denon DHT-S517 true
- Voice assistant: Sonos Arc Ultra Sonos Voice Control, Amazon Alexa vs Denon DHT-S517 none
What reviewers say
Sourced tester consensus for each — the "what people who used it think" layer, not just specs.
Sonos Arc Ultra
Verified two whitelisted hands-on reviews (Engadget, SoundGuys); all six quotes were re-confirmed verbatim on their pages and both cover the exact Sonos Arc Ultra model. Neither source published lab-measured values with units, so no measured-value cross-check was possible. Both praise the sound and bass performance while flagging the steep $999 price and the cost of expanding to a full surround setup. A previously listed 'sleek low-profile design' praise point was dropped as unsupported by any verified quote. (2 sourced reviews, 2 lab-tested.)
Praised: Genuine sound and bass upgrade over the original Arc, with clean spatial detail and dialogue that stays clear.
Flagged: Expensive at $999, and expanding the system (sub/rears) gets pricey fast; A single bar still does not fully replicate a true rear-channel surround setup.
Denon DHT-S517
No sourced tester review yet.