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Sony's New ULT Series Bluetooth Speakers Get Extra Bass and a Memorable Name

These speakers and headphones are designed to make you feel like you're in the front row at a concert.

David Carnoy Executive Editor / Reviews
Executive Editor David Carnoy has been a leading member of CNET's Reviews team since 2000. He covers the gamut of gadgets and is a notable reviewer of mobile accessories and portable audio products, including headphones and speakers. He's also an e-reader and e-publishing expert as well as the author of the novels Knife Music, The Big Exit and Lucidity. All the titles are available as Kindle, iBooks, Nook e-books and audiobooks.
Expertise Mobile accessories and portable audio, including headphones, earbuds and speakers Credentials
  • Maggie Award for Best Regularly Featured Web Column/Consumer
David Carnoy
3 min read
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I got an early review sample of the ULT Field 1, which costs $130. 

David Carnoy/CNET

In an attempt to give its audio products more marketing-friendly names, Sony's unveiled a new line of headphones and Bluetooth speakers under its new ULT Power Sound sub-brand. At launch, the ULT series includes new ULT Wear headphones ($200) and three new Bluetooth speakers: the ULT Tower 10 ($1,200), ULT Field 7 ($500) and ULT Field 1 ($130). 

Read more: Best Bluetooth Speakers of 2024

As you might have guessed, ULT is short for ultimate or, as Sony says, "The ultimate step into the evolution of its portable audio products." Power represents "dynamic sound pressure and deep bass." Sound translates to "as if you were in the front row at a concert." Tower and Wear are self explanatory and Field stands for, well, something you'd use when you're out and about -- out in the field, so to speak. I don't know quite what to make of all that, but for better or worse, clearly a lot of thought went into naming this series.  

I got a chance to use the ULT Wear headphones (read our full review) and also tried out the new ULT Field 1, the smallest Bluetooth speaker in the line and a successor to Sony's SRS-XB23 and SRS-XE200.

Here's a quick rundown of the new Bluetooth speakers.

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The Field 1 is available in four color options and will ship April 22.

Screenshot by David Carnoy/CNET

Sony ULT Field 1

Sony launched the SRS-XB23 a few years ago and it was a fairly popular portable Bluetooth speaker. The lightweight and compact ULT Field 1 sort of looks like a cross between it and the newer SRS-XE200 and sounds significantly better than the XB23, which had bass forward sound but just didn't offer enough clarity and detail for my tastes. The ULT Field 1 sounds fuller and more balanced and competes favorably with JBL's popular Flip 6, which lists for the same price.

The speaker comes in four colors -- off-white, orange, black and forest gray -- and it's waterproof and dust-proof, with an IP67 rating. It also has speakerphone capabilities and is rated for up to 12 hours of battery life at moderate volume levels.

When you press the ULT button, you get a bass boost and overall fuller sound. Unlike with the ULT button on the Wear headphones that I thought boosted the bass too much, in the case of the Field 1, the speaker sounded didn't have enough bass unless the ULT button was engaged. Here are its key specs:

  • Compact and lightweight
  • EQ: Low-frequency mode with ULT Button and three-band EQ
  • IP67 Waterproof, dust-proof, rust-proof and shock-resistant
  • Integrated adjustable strap
  • Up to 12 hours battery life
  • Speakerphone (built-in microphone)
  • $130
  • Available in black, forest gray, off white and orange
  • Ships April 22
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The ULT Field 7 is a boom box style speaker that costs $500.

Screenshot by David Carnoy/CNET

Sony ULT Field 7

I haven't tried the ULT Field 7 but it's supposed to ship before the ULT Field 1, according to Sony. It's the successor to Sony's SRS-SG500 Bluetooth boom box. I liked the SG500 but thought it lacked clarity compared to some of its competitors, including boom box speakers from JBL. 

Sony says the Field 7 offers improved sound and a new karaoke feature, so I look forward to testing it. Here are its key specs:

  • Weight: 13.9 pounds (6.3 kg)
  • EQ: Two low-frequency modes with ULT button, seven-band EQ
  • Lighting: Ambient lighting that synchs with your music
  • Battery Life: Up to 30 hours at moderate volume levels
  • Quick charge feature (10-minute charge gives you 3 hours of battery life)
  • Charge out port
  • Vertical and horizontal orientation with multiple handles
  • IP67 waterproof, dust-proof and rust-proof
  • Sound Field Optimization
  • Karaoke function
  • $499
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The massive ULT Tower 10 lists for $1,200 and has built-in wheels to make it easier to move around.

Screenshot by David Carnoy/CNET

ULT Tower 10

The 64-pound ULT Tower 10 is massive party speaker that features built-in wheels so you can move it around more easily. It does require AC power to use (it is not battery powered) and has an LED light show option as you'd expect from a party speaker.  This is a bigger speaker than Sony's SRS-XV900 ($900) party speaker, which does have a built-in battery. Like that model, there's a karaoke option (a wireless microphone is included) and connectivity option for TVs (TV Booster feature). Here are the Tower 10's key specs.

  • Weight: 64 pounds (29kg)
  • Omnidirectional sound
  • Two low-frequency modes with ULT Button, 7-Band EQ
  • Omnidirectional Lighting 34 areas of light compared to 15 for SRS-XV900
  • Included Wireless microphone for karaoke
  • TV Sound booster feature
  • Sound field optimization
  • Built-in hand and wheels (wheels are about 50% bigger than XV900's)
  • Price: $1,200

Read more: Best Bluetooth Boom Box Speakers of 2024

Watch this: Sony ULT Wear Headphones Review: Evolution of Extra Bass