Sony ULT POWER SOUND Series Party Speaker SRS-ULT900AC

The Sony ULT TOWER 9AC delivers massive bass, 360° Party Sound, and dynamic lighting for an unforgettable party experience. Featuring an X-Balanced Speaker Unit and ULT bass modes, it fills any space with deep, powerful sound. Whether you're connecting a TV, plugging in a mic or guitar, or syncing up to 100 speakers via Party Connect, this speaker is built to elevate every moment. With splash resistance, a carry handle, and long battery life, it’s easy to take anywhere. Control settings via the Sony | Sound Connect app and enjoy rich stereo sound, karaoke, and TV Sound Booster capabilities.

Massive bass and stronger sound

Bigger bass, powerful sound pressure and 360° Party Sound and Light are ready to turn your venue into a concert. You can plug in a guitar and mic and become a Karaoke star, or connect your TV for a boosted audio expedience.

Massive bass. Ultimate vibe.

Dive into the front row of a concert with a speaker built for music lovers. Experience heart-pounding audio with dynamic sound and massive bass. Get ready for the ultimate vibe.

Powerful sound and bigger bass for better parties

The prominent ULT button gives you access to two exciting bass modes. Powerful bass to feel the beat and get you dancing, or deep bass boost for low-frequency sound that will make your heart tremble.

Hit the button. Feel the bass.

Press the ULT button to enjoy the powerful sound of ULT1 and ULT2. Select ULT1 for deeper, lower frequency bass. Select ULT2 for powerful, punchy bass.

Surround yourself in sound

360º Party Sound carries powerful sound to every corner of the room. Four tweeters deliver clear sound to both the front and rear of the speaker, with two mid-range speakers for vocal clarity. Feel the bass sound, thanks to the large X-Balanced Speaker Unit. Together, they let everyone in the room feel the power of the music, wherever they are.

Powerful sound with X-Balanced Speaker Unit

Our X-Balanced Speaker Unit features an almost square diaphragm, for an increased surface area compared to conventional speaker units. The 320 mm x 320 mm large woofer unit gives clear and deep bass sound.

A richer, clearer, deeper experience

The non-circular diaphragm not only maximizes the are of speaker diaphragm but it also increases sound pressure for deeper and punchier bass, less distortion and greater vocal clarity. Altogether, it elevates your listening experience.

Booming bass with ULT DUCT

The ULT DUCT improves bass extension for music you can feel. A clever baffle design helps smoothly spread bass throughout your space.

Sound Field Optimization

By detecting local noise, it automatically changes the sound setting to deliver clear music even when you are surrounded by other sounds.

10-Band Equalizer

Select your favorite sound setting and hear your music exactly as you like it.

Take the party with you

With a built-in battery, carry handle and sturdy castors, you have the ultimate freedom to take the party with you. Plus, a splash resistant top panel is ideal for for worry-free use.

Carry with ease

An easy-to-carry handle makes it simple to carry or lift your speaker, and the stable castors mean you can pull it over long distances.

Splash resistant top panel

Don’t worry about spills on the top panel. With a splash resistant design, the party plays on.

Lights and karaoke for bigger, better parties

Add mood with lighting, and instant fun with karaoke, to make every party memorable.

Be your own festival with 360° Party Light

The ULT TOWER 9AC doesn’t just play music, it also lights up your party with a synchronized lighting display. So you’ll feel like you’re at a festival.

Music that really gets you moving with Party Connect

Link up to 100 compatible speakers to synchronize music and lighting through Party Connect – fill any location with powerful sound to create the ultimate party atmosphere in any location.9 And there’s no app required, just add speakers with the dedicated CONNECT button.

Add an extra ULT TOWER 9AC speaker for rich stereo sound with Stereo Pair

Connect two ULT TOWER 9AC speakers via Bluetooth function to activate stereo sound (left and right), to experience a rich sense of presence.

Karaoke control at your fingertips

Perfect your karaoke with the Echo and Key Control function on the top panel. There’s also a second input, so you can plug in another microphone for a duet or even a guitar and use your speaker as an amp.

Plug in. Sing up.

The optional ULT MIC includes a pair of durable, high-quality wireless karaoke mics, along with a mic jack receiver (6.3mm) for easy, always-ready connection to your ULT TOWER.

Total convenience, total customization

The ULT TOWER 9AC is even better with the Sony | Sound Connect app. The simple interface lets you dial in your ideal sound and shortcut settings, including lighting control. It can even keep track of your recent listening history.

Boosting live performance

Sony’s unique function, TV Sound Booster, lets you enjoy enhanced audio-visual sound, watching everything from live performance videos to movies. With deep bass and realistic high-frequency sound spread, you get a true audio-visual experience that draws you right into the action. The ULT TOWER 9AC ramps up your TV sound with the X-Balanced Speaker Unit, while tweeters on the rear help fill the room with pure sound.

Connect TV and ULT TOWER 9AC

Connect the ULT TOWER 9AC to your TV using the supplied optical cable.

Activate TV Sound Booster

Switch on TV Sound Booster in the Sony | Sound Connect app.

How the TV Sound Booster works

A powerful combination of TV sound and the ULT TOWER 9AC’s two rear tweeters and the X-Balanced Speaker Unit will provide you with an upgraded TV sound, whatever you watch.

Multipoint Connection

For total convenience, the ULT TOWER 9AC can be paired with two Bluetooth devices at the same time, automatically switching between them when you start playback on either device.

Bluetooth Fast Pair

In one tap, the ULT TOWER 9AC enables quick, effortless Bluetooth pairing with your Android devices.

USB Play, and charge devices

Plug in and play music with USB connectivity, plus you can use the ULT TOWER 9AC to charge up your other devices.

Aiming to achieve a zero environmental footprint

Inspired by the beauty of the world, we are doing our part to help preserve the Earth while still offering superior sound quality and listening experiences. With a goal of achieving a zero environmental footprint across the entire Sony Group by the year 2050, we are accelerating numerous initiatives for the environment.

Environment in mind

Our products are designed not only to pursue sound quality, but also to consider the environment. The recycled plastic originally developed for Sony is partially used for the body of the ULT TOWER 9AC. This reflects how Sony strives to reduce the environmental impact of our products.

Accessibility

We believe technology should make the world more interactive, more creative, more entertaining, and more inclusive. By incorporating human-centric, inclusive design into our audio products, we deliver our KANDO experience to all our users, regardless of age, ability or environment.