800-860-3577
Delivery Truck
Scheduled delivery to your door.
A scheduled delivery is available only Monday - Friday during normal business hours and used for heavy and oversized items (large TVs, large furniture and large appliances). This service does not include unpacking, plugging in, installation or debris removal. If there are any stairs leading to your delivery, please contact a sales associate for a quote.

Note: Scheduled delivery services are available to most of the contiguous United States (available in parts of Alaska and Hawaii). Call 800-860-3577 for more information.
Main Content

Sony ULT POWER SOUND Series ULT TOWER 9 Party Speaker Bluetooth in Black - SRSULT900

Click to sign in and save to a list or registry
Shop Sony
Sony Logo
Abt Model: SRSULT900 UPC: 027242931923
Ship to
Your Price: $748
Save $150. Price includes manufacturer rebate
which ends 06/14/2026
Regular Price: Comp. Value: $898
Special financing as low as $63/mo
Abt Credit Card
$63/mo suggested payments with 12 month special financing.
Get a decision in seconds with no impact to your credit bureau score.
or
Power Source
Limit 2 per customer
Free Shipping
to
This item ships within one business day.
Click to sign in and save to a list
Sony Authorized Dealer Logo

Meet the Sony ULT TOWER 9 Bluetooth Party Speaker

Change the way you experience sound during get-togethers with the Sony ULT TOWER 9. With up to 25 hours of playtime, the night doesn’t have to end when the sun goes down. 360° Party Sound means everyone will enjoy the music, no matter where they are in the room. The Sony ULT TOWER 9 has four tweeters and two mid-range speakers that work to deliver crisp, clear audio. Thanks to the large X-Balanced Speaker Unit, you won’t need to worry about the bass getting lost in the music. Choose between two options with the ULT button to increase the bass punch further and enjoy each song in your preferred way.

An Unforgettable Night with Lights and Karaoke

Add amplify the night with the festive lighting built within the Sony ULT TOWER 9. The 360° Party Light is customizable to fit the mood and transform the space into an at-home concert. Plus, sing along to iconic songs with karaoke control options. The included microphones and a jack receiver mean live concerts whenever the group gets together. A simple touch of your finger will adjust settings so each singer performs like a professional. Craving more sound? Pair multiple speakers together with Party Connect and fill any space with your chosen music. With the Sony ULT TOWER 9, karaoke nights lit by synchronized lights will truly transform any get-together into an unforgettable experience.

Unending Connections for Every Experience

The Sony ULT TOWER 9 has a range of connectivity options, meaning the tunes travel alongside you. Whether you like to connect via Bluetooth or a USB port, enjoy the flexibility this device offers. Plus, the USB port keeps other devices charged up without needing an additional outlet. When using Bluetooth, pair two devices simultaneously and switch between them seamlessly. Now, share the music with your friends so everyone can choose their favorite songs to jam to. Want an amplified movie viewing experience? This speaker connects directly to your TV and elevates sound via the X-Balanced Speaker Unit and two rear tweeters. For more information on the Sony ULT TOWER 9, contact our experts at 800-860-3577 or explore our buying guide to find the ideal wireless speaker for you.

Key Features

  • Press the ULT button to experience the powerful sound of ULT1 and ULT2 bass boost modes. 
  • 360° party sound carries powerful sound to every corner of the room.
  • Powerful sound with X-Balanced Speaker Unit.
  • Bring the festival feeling with 360° party light.
  • The party never stops with up to 25 hours of batterylife.2
  • Quick charge: 10 minute charge gives you up to 180 minutes of playtime.2 
  • Hear your music exactly as you like it with 10-Band Equalizer.3
  • Perfect karaoke partner.
  • Enhance your video content with TV Sound Booster.11
  • Easy to move with handle and caster.
  • Add an extra compatible speaker for stereo sound.
  • Bluetooth® Fast Pair and multipoint connection.4

Features

  • 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.5
  • 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.3
  • 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 resistant6 top panel is ideal for for worry-free use.
  • The party never stops
    Up to 25 hours of battery life2, the ULT TOWER 9 will keep your party powered all through the night.
  • Charge in just 10 minutes
    With quick charging, you can get up to 180 minutes of playing time with just 10 minutes of charging.2
  • Take care of your battery
    The Battery Care function means you never have to worry about overcharging your speaker, so it’s more dependable for longer.
  • 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.6
  • Lights and karaoke for bigger, better parties
    Set the mood with party lighting and add instant fun with karaoke to make every party unforgettable.
  • Be your own festival with 360° Party Light
    The ULT TOWER 9 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.4 And there's no app required, just add speakers with the dedicated CONNECT button.
  • Add an extra speaker for rich stereo sound with Stereo Pair
    Connect two ULT TOWER 9 speakers via Bluetooth® function to activate stereo sound (left and right), to experience a rich sense of presence.4, 8, 9
  • 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 9 is even better with the Sony | Sound Connect app.7, 10 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.
  • Check your charge on the app
    Keep an eye on your battery level on the Sony | Sound Connect app.7
  • Boosting live performance
    Sony's unique function, TV Sound Booster,11 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 9 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 9
    Connect the ULT TOWER 9 to your TV using the supplied optical cable.
  • Activate TV Sound Booster
    Switch on TV Sound Booster in the Sony | Sound Connect app.7, 11
  • Activate the sound of the ULT TOWER 9 and TV
    • 1. Play content on TV.
    • 2. Adjust the TV volume using its remote control so that you can clearly hear dialogue.
    • 3. Adjust the volume of the ULT TOWER 9 from the Sony | Sound Connect app so that the bass sound is as loud as you like.7, 9, 10
  • How the TV Sound Booster works
    A powerful combination of TV sound and the ULT TOWER 9’s two rear tweeters and the X-Balanced Speaker Unit will provide you with an upgraded TV sound, whatever you watch.11
  • Multipoint Connection
    For total convenience, the ULT TOWER 9 can be paired with two compatible Bluetooth® devices at the same time, automatically switching between them when you start playback on either device.4
  • Bluetooth® Fast Pair4
    In one tap, the ULT TOWER 9 enables quick, effortless Bluetooth® pairing with your Android™ devices.4, 12
  • USB Play, and charge devices
    Plug in and play music with USB connectivity, plus you can use the ULT TOWER 9 to charge up your other devices.13
  • 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 9.14 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.

Footnotes:

  • 1 ULT POWER SOUND is a trademark of Sony Corporation.
  • 2 When ULT1/2 on, and the volume level is set to 18, lighting off. Actual performance may vary from the listed time due to the volume, songs played, surrounding temperature, and usage conditions. Batteries are consumable products, and their capacity degrades over time as they age. Sony does not guarantee the life span of the battery.
  • 3 The equalizer is controllable through Sony | Sound Connect app.
  • 4 Interoperability and compatibility among Bluetooth® devices vary.
  • 5 There are 3 modes: ULT off, ULT1, and ULT 2. Default setting is ULT2.
  • 6 Splash-resistant requires that all ports and covers are firmly closed. 
  • 7 Download app at Google Play and the App Store. Network services, content, and operating system and software subject to terms and conditions and may be changed, interrupted, or discontinued at any time and may require fees, registration, and credit card information.
  • 8 When watching movies, there may be a gap between video and audio.
  • 9 Only compatible between ULT TOWER 9 wireless speakers.
  • 10 Update in Sony | Sound Connect app is required to use DJ Control, Party Light and Karaoke functions.
  • 11 While the TV Sound Booster function is activated, the four speaker components (two tweeters and two mid-range speaker) on the front side of the speaker are disabled to optimize the audio output for combined use with a connected TV.
  • 12 Android phones running 6+ are required.
  • 13 USB Library (Search contents in UBS folder) requires update by Sony | Sound Connect app.
  • 14 The recycled plastics may not be used for parts, depending on the time of production.
  • 15 Product availability varies by region.
California customers: