Last updated

Sonos Arc Ultra
Sonos Arc Ultra
Our verdict
The Sonos Arc Ultra is a stunning technical achievement, delivering way more bass than you'd expect for such a thin product. The only problem is price: you can get the previous generation Arc and a dedicated subwoofer for around the same amount. 
$1,799 RRP
What we love
  • Huge improvement compared to a solo original Arc
  • Thin profile
  • Fantastic sound with excellent bass
What could be improved
  • Not a huge improvement compared an original Arc paired with a Sub
  • More expensive than previous model 

Sonos' new high-end connected soundbar - the Arc Ultra - lives up to its, offering a silly amount of bass in a thin package. It's a really impressive feat, but it also creates a conundrum.

The Arc Ultra is the flagship product for Sonos' "Sound Motion" technology, which it calls "one of the most significant breakthroughs in audio engineering in nearly 100 years".

In short, Sound Motion is said to allow bigger, better sound from smaller products. In addition to improved clarity and depth, Sonos says the Arc Ultra doubles the bass output of its predecessor.

Listening to the Sonos Arc Ultra side-by-side with the original Sonos Arc, the improvement is immediately clear. Tracks like Carly Rae Jepsen's "I Didn't Just Come Here To Dance" feel so much more vibrant and alive. The original Arc was no slouch, but you can hear better bass immediately. 

In some cases, pairing the Arc Ultra with a Sonos subwoofer didn't really change the sound much. Nina Simone's "Feeling Good" was almost identical when played through the Arc Ultra by itself and when played through the Arc Ultra with a Sub 4. That's seriously impressive.

Sonos Sub 4

The only area where the Arc Ultra really benefited from having a subwoofer paired was with sub-bass. As fantastic as the Arc Ultra is, it can't hit the deep resonate lows you get in songs like Childish Gambino's "3005" or when there's a rumbling explosion in a movie.

This creates a problem, because the Sonos Arc Ultra paired with a Sub sounds very similar to the original Arc paired with a Sub. You might notice a slightly wider sound stage, but it's not a day-and-night upgrade like when the soundbars are used solo.

This wouldn't be as much of an issue if the Arc Ultra was priced in line with the Arc, but it's $300 more expensive, retailing for $1,799. And since the Arc is being discontinued, we're seeing it being sold for under $1,000 at time of writing. You can get the Arc and a Sub for roughly the same price as the Arc Ultra standalone and get a better audio experience.

Side note: there's a new Sonos Sub 4 that was launched to go with the Arc Ultra, but it's acoustically identical to previous generations. The main change is a new matte finish to better match the Arc Ultra, as well as increased processing power and memory. This won't change the sound quality, but it will ensure a longer software life.

Sonos Arc Ultra

Sonos says the Arc Ultra has more dimensionality, and advertises it as a 9.1.4 speaker - up from 5.0.2 on the Arc. While both have room-filling presence from the upward-firing speakers, the extra drivers never felt like they added much. Sound never felt like it was coming from behind me with either the original Arc or Arc Ultra.

The Arc Ultra does have a few other improvements worth touching on, however. It's the first Sonos soundbar that supports Bluetooth as a direct input mechanism - you don't have to go through the Sonos app or AirPlay on your iPhone to send music to it.

There's also improved speed enhancement, giving you more options in terms of bringing voice forward in the mix. Out of the box, I found voices crystal clear, even on lower volumes. Lastly, it has a slightly lower profile (but a longer design), and a redesigned control strip. Both are thoughtful, but huge changes.

Sonos Arc Ultra - Final Thoughts


The Sonos Arc Ultra is a fantastic connected soundbar. In terms of audio performance, it's hard to fault. If you're looking for a top-tier soundbar and don't want to pair it with a subwoofer for whatever reason, the Arc Ultra is easy to recommend.

But if you do want a subwoofer - and my gut says that many dropping top dollar on home audio equipment would - the benefits of going with an Arc Ultra over an Arc are very minor. There's Bluetooth support and more advanced speech enhancement, but you're not getting too much else. In terms of audio quality, the Sonos Arc paired with a Sub sounded almost identical to the Sonos Arc Ultra paired with a Sub.

While Sonos is discontinuing the original Arc, right now you can get it for under $1,000. The previous generation Sub 3 is also available for around $949. At that price, that pair is a better buy than the $1,799 Arc Ultra.

Get the best telco deals first

Sign up and get money-saving deals, telco news and more.

Thank you for subscribing!

Keep an eye on your inbox for the latest telco news and great deals

Looking for a new NBN plan?

These are the most popular NBN 50 plans with WhistleOut users this week:

#1
Exetel
Exetel

Extra-value nbn50

  • nbn® 50/17 Mbps
  • Unlimited Data
  • Deal: Includes $19/mth off for first 6 months - $60.99/mth for first 6 months, then $79.99/mth.
$60.99/mth
Min. cost $60.99
#2
Tangerine Telecom
Tangerine Telecom

Value Plus NBN

  • nbn® 50/17 Mbps
  • Unlimited Data
  • Deal: Includes $23/mth off for the first 6 mths, $59.90/month for first 6 months, then $82.90/month + 3 months BINGE. Ends 30.06.25
$59.90/mth
Min. cost $59.90
#3
Buddy Telco
Buddy Telco
Editor's Pick

Value nbn - Unlimited

  • nbn® 49/16 Mbps
  • Unlimited Data
  • Deal: $63/month for first 6 months, then $75/month. Use promo code BUDDY50. Offer ends 18.05.25
$63/mth
Min. cost $63
#4
TPG
TPG

nbn50 Unlimited Plan

  • nbn® 50/17 Mbps
  • Unlimited Data
  • Deal: Get Price Beat Guarantee + $69.99/mth for first 6 months, then $84.99/mth. T&Cs apply.
$69.99/mth
Min. cost $69.99
#5
Kogan Internet
Kogan Internet

Silver Unlimited

  • nbn® 50/17 Mbps
  • Unlimited Data
  • Deal: $59.90/mth for first 6 months and revert back to $78.90/mth thereafter. Offer ends 30.05.25
$59.90/mth
Min. cost $59.90
#6
iiNet
iiNet

nbn50 Liimitless

  • nbn® 50/17 Mbps
  • Unlimited Data
  • Deal: Includes $15/mth off for 6 mths – $69.99/mth for first 6 months, then $84.99/mth. Use code SAVE15FOR6. Ends 06.05.25
$69.99/mth
Min. cost $69.99
#7
Dodo
Dodo

nbn50 Unlimited Plan

  • nbn® 50/17 Mbps
  • Unlimited Data
  • 12mths Deal: Incl. $15/mth discount for 12 months based on the standard price $83.90/mth*. Ends 29.04.25. T&Cs apply.
$68.90/mth
Min. cost $68.90
#8
Superloop
Superloop

Extra-value nbn50/20

  • nbn® 50/17 Mbps
  • Unlimited Data
  • Deal: Incl. $14/mth off for 6 months! $67/mth for 6 mths, then $81/mth + Free Amazon eero 6+ if you stay connected for 24 mths
$67/mth
Min. cost $67
#9
Telstra
Telstra

Upfront Internet Plan Essential

  • nbn® 50/17 Mbps
  • Unlimited Data
$105/mth
Min. cost $105
Link not supplied
#10
iPrimus
iPrimus

Standard Plus nbn50 Plan

  • nbn® 50/17 Mbps
  • Unlimited Data
$84/mth
Min. cost $84

Compare internet plans from the following providers...

Personal

  • SpinTel
    Advertisement
  • Dodo
  • Tangerine Telecom
    Advertisement
  • TPG
    Advertisement
  • Exetel
    Advertisement
  • iiNet
    Advertisement
  • Flip
    Advertisement
  • Buddy Telco
    Advertisement
  • Superloop
    Advertisement
  • Optus
  • Kogan Internet
    Advertisement
  • Telstra
  • iPrimus
  • Activ8me
    Advertisement
  • Skymesh
    Advertisement
  • Origin Broadband
  • MATE
  • Aussie Broadband
    Advertisement
  • Southern Phone
  • Vodafone
  • More
    Advertisement
  • Belong
  • ALDI mobile
  • Moose NBN
  • amaysim
  • Yomojo
  • AGL
  • Swoop
  • IPSTAR
  • Lebara Mobile

Business

  • SpinTel
    Advertisement
  • Exetel
    Advertisement
  • Superloop
    Advertisement
  • Aussie Broadband
    Advertisement
  • More
    Advertisement
  • Telstra Business
  • Vodafone Business
  • Swoop
  • Optus Business

Latest Internet Deals

See the WhistleOut expert's picks of the best nbn plans this month

12mths of savings!! Save with nbn100 for $73.90 for 12mths with Dodo!

Extra Value nbn50/20 for $67/mth for first 6mths + free Amazon eero+ offer!

Extra value nbn50 $63.99/mth for first 6mths, includes 5 Free Speed Boosts!

Save $10/mth with 5G Home Wireless Internet, just $49.99/mth for first 6mths!

New Tangerine customers can get Value nbn50 for $59.90/mth for the first 6mths!