Sony has introduced three new Bluetooth speakers under its ULT Power Sound branding, expanding its audio lineup with a focus on strong bass, rugged designs, and long battery life. The new models—ULT Field 3, ULT Field 5, and ULT Tower 9—range in price from $200 to $900 and target different use cases from portable listening to full-blown party sound systems.
At the entry level is the $200 ULT Field 3, a compact cylindrical speaker that replaces the SRS-XE300 and builds on the earlier ULT Field 1. Designed for portability, the speaker includes a shoulder strap and can be used standing up or laid flat. It features a woofer, a tweeter, and passive bass radiators at both ends. A dedicated “ULT1” bass boost button emphasizes low-frequency performance, while a 7-band equalizer allows for further sound customization. The Field 3 is IP67 rated for water and dust resistance and delivers up to 24 hours of playback, though the runtime decreases when bass boost is active.

Moving up in size and price, the $330 ULT Field 5 builds on the Field 3’s form factor but offers upgraded audio hardware, including a central woofer, two tweeters, and dual passive radiators for side-firing bass. In addition to the ULT1 setting, it features a second bass-enhancing mode labeled ULT2, designed to add more aggressive, punchy low-end sound. The Field 5 also introduces built-in LED lighting and an extended 10-band EQ, both accessible through Sony’s Sound Connect app. Like the Field 3, it supports stereo pairing and multi-speaker connections, is IP67-rated, and has a maximum battery life of up to 25 hours.

The largest and most powerful speaker in the lineup is the ULT Tower 9. Priced at $900, this floor-standing party speaker features a 12.6-inch woofer, four tweeters, and two mid-range drivers to handle a wider frequency range. Built-in wheels and a durable frame make it portable despite its 65-pound weight. In addition to the ULT1 and ULT2 bass modes, the Tower 9 includes a 10-band EQ and app support for tuning and lighting control.

The Tower 9 also functions as more than just a Bluetooth speaker. It supports wireless karaoke microphones and includes an optical input, allowing it to connect to TVs for use with Sony’s TV Sound Booster feature—meant to enhance movie and gaming audio in large spaces. A synchronized light show rounds out the entertainment features, reinforcing its appeal as a party centerpiece.
For those looking for a lower-cost option, Sony is also offering a plug-in version of the Tower 9. The Tower 9AC model drops the battery and comes in at $750.