All products featured are independently chosen by us. However, SoundGuys may receive a commission on orders placed through its retail links. See our ethics statement.
Sony rounds out its ULT Power Sound lineup with three new wireless speakers
Published onApril 9, 2025
We’ve got all three Sony speakers in hand. Our ULT Field 3 review is already live, with more testing in progress.
- ULT Field 3 ($199): Compact, IP67, ULT1 bass mode, 7-band EQ, 24HR battery
- ULT Field 5 ($329): Dual tweeters, 10-band EQ, ULT1 & ULT2 modes, lighting, 25HR battery
- ULT Tower 9 ($899): 360° sound, 6 drivers, party lighting, karaoke support
- ULT Mics ($149): Wireless, 20HR battery, duet assist, mic jack compatibility
Sony has expanded its ULT Power Sound lineup with three new wireless speakers designed to deliver powerful bass, customizable EQ, and multi-speaker pairing. The new ULT Field 3, ULT Field 5, and ULT Tower 9 all feature Sony’s signature ULT sound modes, with Party Connect support and extended battery life. A pair of ULT Mics (sold separately) adds karaoke functionality to the Tower speakers. Let’s break it all down.
ULT Field 3: The compact upgrade
Replacing the older SRS-XE300, the ULT Field 3 gets a visual and functional refresh with a squarer, more directional design and support for horizontal or vertical use. It’s compact and rugged, with IP67 waterproofing and shock resistance, and comes with a detachable shoulder strap that makes it easy to carry.
Inside, you’ll find a single woofer, a tweeter, and two passive radiators—driven by a 7-band EQ and ULT1 mode, which emphasizes lower frequencies for a deeper bass profile. Battery life clocks in at up to 24 hours, though runtime drops to around 5 hours at max volume with bass mode enabled. Party Connect support lets it sync with up to 100 other Sony speakers, though this model doesn’t have any built-in lighting.
ULT Field 5: A louder, more flexible middle ground
The ULT Field 5 replaces the SRS-XG300 and slots just below last year’s ULT Field 7. It’s slightly smaller, a little lighter, and $170 cheaper, but still packs serious punch. You get a central woofer, two front-facing tweeters, and dual passive radiators on the sides, plus support for both ULT1 and ULT2 sound modes—the former tuned for deep bass, the latter for more aggressive, punchy output.
This time around, lighting is on the menu, with LED rings around the passive radiators that sync with your music. Sony’s Sound Connect app unlocks additional features, including a 10-band EQ and lighting customizations. The speaker is still IP67 rated, offers wired USB-C listening, and includes a 3.5mm audio input.
Battery life reaches 25 hours, though enabling lights and cranking volume can cut that down to as little as 2.5 hours, according to Sony.
ULT Tower 9: Big sound and 360° glow
At the top end of the new releases is the ULT Tower 9, a follow-up to the SRS-XV900. It’s a full-fledged party speaker built for bigger rooms, outdoor spaces, and karaoke nights. The hardware has been upgraded with six drivers (1 woofer, 4 tweeters, and 2 mids), and sound spreads out in every direction thanks to Sony’s 360° Party Sound system.
It’s available in two versions: an AC-only model for $749 and a battery-powered version for $899 that gets up to 25 hours of playtime and 3 hours of use from a 10-minute quick charge. Sony has also expanded the party lighting system, with 23 individually lit zones casting ambient light across the floor and walls.
A built-in handle and larger wheels ensure portability, while a mic/guitar input and TV Sound Booster mode round out the entertainment features. Like the Field speakers, the Tower 9 supports Party Connect and Sony’s app-based controls.
ULT Mic: Add karaoke with wireless vocals
If you want to go full karaoke, Sony’s new ULT Mic is a wireless, shockproof mic designed to work with the Tower 9 and other ULT models. It runs for 20 hours and includes hand and wind noise suppression. It also has a clever feature called Duet Assist, which automatically adjusts mic levels in real-time so quieter singers don’t get drowned out.
The Mics work with the new Tower 9 speaker, as well as older Sony speakers with a mic jack like the XP700 and XV900.
Completing the lineup
With the Field 3 and Field 5 speakers now in the mix, Sony’s ULT lineup covers nearly every use case—from the tiny Field 1 to the giant Field 7 and now all the way up to the Tower 9 and Tower 10. While the ULT badge mostly translates to bigger bass and better battery life, there’s now enough variety across price points and sizes that this series is starting to feel complete.
We’ve got all three new speakers in hand. Our full Field 3 review is already up, and testing is underway for Field 5 and Tower 9, along with the ULT Mics.