Authorized dealers for Sony ULT POWER SOUND™ series | ULT FIELD 1 Wireless Portable Speaker | Black

Resolution A/V — in-store — New York City, New York, United States (website)
2C Stereo — in-store — Washington, District of Columbia, United States (website)
Abt Electronics — online and in-store — Glenview, Illinois, United States (website)
Acoustic Designs Inc. — in-store — Scottsdale, Arizona, United States (website)
Acoustic Sounds — online and in-store — Salina, Kansas, United States (website)
Adorama — in-store — New York, New York, United States (website)
Advance Audio — in-store — Wichita, Kansas, United States (website)
Ahead Stereo — in-store — Los Angeles, California, United States (website)
Ajasom — online and in-store — Amadora, Lisboa, Portugal (website)
Alex Audio Video — in-store — Sofia, Sofia City Province, Bulgaria (website)

and 323 more verified dealers

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Sony ULT POWER SOUND™ series | ULT FIELD 1 Wireless Portable Speaker | Black #1

Sony ULT POWER SOUND™ series | ULT FIELD 1 Wireless Portable Speaker | Black variant 1

Sony ULT POWER SOUND™ series | ULT FIELD 1 Wireless Portable Speaker | Black variant 2

Sony ULT POWER SOUND™ series | ULT FIELD 1 Wireless Portable Speaker | Black variant 3

Sony ULT POWER SOUND™ series | ULT FIELD 1 Wireless Portable Speaker | Black

Name: Sony ULT POWER SOUND™ series | ULT FIELD 1 Wireless Portable Speaker | Black
Brand: Sony
SKU: srsult10-b
Price: 139.99 USD
Availability: InStock
Rating: 86 (7 reviews)

View at Sony

Bluetooth

Battery Powered

IP Control

ULT Button to boost your bass

Press the ULT button to boost your bass.

IP67 Water and dustproof

With an IP67 waterproof and dustproof rating this speaker is ready for the elements.

Shockproof

Shockproof to withstand knocks and bumps.

Multi-way strap

Detachable, multi-way strap to carry the speaker with you.

Hands-free calling

Clear call quality with Echo Canceling.

Sound Connect App Compatible

The Sound Diffusion Processor expands sound in any space.

On-the-go portability

Enjoy music for longer with up to 12 hours of battery life. Compact, easy-to-carry design. Four different colors to suit your style.

Big sound. Compact design.

Experience enhanced bass and powerful sound built into a compact package. Complete with a multi-way strap for ease of use, take your waterproof, dustproof and even shockproof speaker anywhere for longer, thanks to a long battery life.

Massive bass. Ultimate vibe.

Dive into the front row of a concert with the ULT POWER SOUND series. Built for music lovers, it produces powerful deep sound designed to make your heart tremble. Prepare to feel the bass.

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Professional Reviews 86/100

Rating for ULT POWER SOUND™ series | ULT FIELD 1 Wireless Portable Speaker | Black

Nicely Roasted

Sound Quality

84/100

Build Quality

90/100

Value for Money

87/100

Compact and rugged, the punchy bass-tuned Sony ULT FIELD 1 brings lively detail and surprising volume for its size. What Hi-Fi? highlights its bright, clear character and sturdy build, while ecoustics praises its outdoor-friendly impact. It’s a fun, go-anywhere speaker with real low-end muscle, especially when the ULT boost is engaged.

What Reviewers Are Saying

"The ULT Field 1 provides a punchy sound that projected outward nicely."

— ecoustics

"The ULT button does add greater helpings of extra lower-end muscle, but such wallop feels more appropriate given the form and function of the ULT Field 1, rounding out the portable speaker's naturally lean character and making it sound more balanced in larger rooms or outdoor spaces."

— What Hi-Fi?

"Its trump card is that it manages to expose plenty of detail, and whether we’re playing a challenging, texture-heavy offering such as Massive Attack’s Teardrop, Joe Cocker’s bluesy Don’t Let Me Be Misunderstood or New Order’s Blue Monday, we’re treated to three distinct performances that rarely skimp on the particulars."

— What Hi-Fi?

Pros

Rugged, IP67-rated build feels tough and ready for outdoor use.

Delivers energetic, punchy bass with the ULT boost, especially for portable listening.

Gets louder than expected for its size while staying comfortable at higher volumes.

Exposes plenty of detail and lively treble, giving music a bright, engaging feel.

Cons

Midrange can sound recessed or hollow compared with class-leading rivals, especially with ULT mode on.

Bass can seem thin without boost, but a little boomy or heavy-handed with ULT engaged.

Occasional top-end harshness and less-than-perfect cohesion keep it from sounding fully refined.

SOUND QUALITY PERFORMANCE 84/100

Reviewers consistently describe the speaker as lively and engaging, with a punchy character that works especially well for casual listening and portable use. The main caveat is that the ULT bass boost can push the presentation a little too far, while the midrange can sound somewhat recessed compared with stronger rivals.

Bass

86/100

The bass gets repeated praise for punch and impact, and several reviews say it becomes much more prodigious with the ULT button engaged. At the same time, reviewers note that it can be a bit thin without the boost and a little heavy-handed or boomy with it on, so the low end is strong for the speaker’s size but not perfectly controlled.

Mid

80/100

The midrange is the main area where reviewers hear trade-offs, especially with ULT mode engaged. Vocals can sit a little back in the mix, and one review says the speaker can sound hollowed out or incomplete beside class-leading rivals, although custom EQ helps restore some balance.

Treble

84/100

Treble is generally described as clear and natural, with good detail on strings and cymbals. There are some complaints about occasional harshness at the top end, so it is clean and lively rather than especially smooth or refined.

Soundstage Imaging

83/100

For a small mono portable speaker, the presentation is described as nicely intimate with a good blend between guitar and vocals, and some recordings create a pleasing sense of space. Reviews also note that the sound is mostly forward-facing rather than especially expansive, so imaging is competent but not a standout.

Dynamics

88/100

Reviewers like how easily it gets loud and how well it handles musical punch and build-ups for its size. The comments point to strong rhythmic drive and better dynamic range than at least one comparison speaker, making this one of the Field 1’s clearest strengths.

Assessments of Build Quality, Usability, and Overall Propositions.

Build Quality

90/100

Reviewers consistently praise the speaker as tough and well made, with a rugged feel, sturdy plastics, tightly woven mesh, and confident outdoor-ready protection. The IP67 rating, shockproofing, and resistance to rain and rough handling all get positive mention, so the build comes across as genuinely robust.

Value for Money

87/100

At around $129 to $139, reviewers generally present it as fairly affordable for a small portable speaker with strong bass, waterproofing, and a durable build. They do not call it a bargain, but the combination of features and energetic sound makes the price feel reasonable against mainstream rivals in this class.

Reviews

Online Reviews & Mentions

Sony ULT Field 1 review - SoundGuys

4/10/2025

Sony's new X-Series wireless speakers are all about that bass

Sony ULT Field 1 review

6/6/2024

Sony ULT Field 1 Review: A Small But Powerful Bluetooth Speaker with a Secret Weapon

6/20/2024

Sony’s New ULT Speakers and Headphones Bring Big Bottomed Bass

4/17/2024

YouTube Reviews

Thumbnail of the video review https://www.youtube.com/watch?v=u5Zos67nQ6I

AV Atmos

Sony ULT Wear Headset, ULT Field 7 Field 1 & Sony Tower 10 party speaker Debuts with premium quality

4/12/2024

Forum Mentions

No forum mentions found yet

Verified Dealers

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Authorized dealers for Sony ULT POWER SOUND™ series | ULT FIELD 1 Wireless Portable Speaker | Black

Resolution A/V — in-store — New York City, New York, United States (website)
2C Stereo — in-store — Washington, District of Columbia, United States (website)
Abt Electronics — online and in-store — Glenview, Illinois, United States (website)
Acoustic Designs Inc. — in-store — Scottsdale, Arizona, United States (website)
Acoustic Sounds — online and in-store — Salina, Kansas, United States (website)
Adorama — in-store — New York, New York, United States (website)
Advance Audio — in-store — Wichita, Kansas, United States (website)
Ahead Stereo — in-store — Los Angeles, California, United States (website)
Ajasom — online and in-store — Amadora, Lisboa, Portugal (website)
Alex Audio Video — in-store — Sofia, Sofia City Province, Bulgaria (website)

and 323 more verified dealers

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