Sony ULT TOWER 9 Wireless Party Speaker SRSULT900 Black SRSULT900

Customer Ratings & Reviews

Top Mentions

Customers are saying

Customers are pleased with the exceptional sound quality and impressive bass performance of this speaker. Users also frequently highlight the reliable battery life, convenient portability, and solid wireless connectivity as standout features. While the design and integrated lighting are well-received, some users noted that the device is heavier than they initially expected.

This summary was generated by AI based on customer reviews.

The vast majority of our reviews come from verified purchases. Reviews from customers may include My Best Buy members, employees, and Tech Insider Network members (as tagged). Select reviewers may receive discounted products, promotional considerations or entries into drawings for honest, helpful reviews.

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Page 1 Showing 1-20 of 295 reviews

Rated 5 out of 5 stars
Great Speaker!!
MJHeye Posted 2 months ago
6 stars should be possible for this item. I've owned 50+ Bluetooth speakers of various brands and sizes. i got sick of mediocre sound and sound quality. i walked into bestbuy looking to get a laptop for music software and a ridiculous speaker to enjoy it on. if i want to play something way too loud and have it still sound great, then i turn this to about halfway. bass cuts through walls, there's no distortion. it's just a well designed speaker. i recently moved and tried something interesting out. throw this bad boy in the back of a box truck if you're looking for some big sound. but be warned, they will come asking to see your noise permit. great buy. nice job Sony.
I would recommend this to a friend
Comment
Brand response from SonyListens
Posted 2 months ago
Hi MJHeye,

Thank you for your enthusiastic review! We're glad the ULT TOWER 9 speaker is delivering the powerful sound and quality you were looking for. Enjoy the music!

Thanks for choosing Sony.

Best regards,
Eliab
Rated 5 out of 5 stars
Wanted a JBL Partybox, so I got this instead
Hector Posted 1 month ago
Of course its a "portable" bluetooth speaker and not a serious home setup but its still pretty awesome and easily the best BT speaker I ever had. It has too much volume for my apartment so I have it at half volume most of the time and had it playing for ~3 hours with Ult mode 1 and battery only went down by ~10%-15% without the lights, honestly pretty good for how loud it is. Many online say the bass on this is lacking and I disagree, they havent listened to this in real life, sometimes its too much with Ult 1 and thats not to say it sounds bad because its not, everything is crisp and clear without hurting your ears like low quality speakers do. If you know you're a basshead then sure go for a JBL Partybox. Otherwise, if you like listening to many different genres especially ones with a preference for vocals like in Regional Mexican music, then this is just easily the superior pick in my opinion. I recommend this and even more if its on discount. I drove to another city and got mine Open Box for 620 and was literally brand new. Big thumbs up
I would recommend this to a friend
Comment
Brand response from SonyListens
Posted 1 month ago
Hi Hector,

It's a true pleasure to hear that this speaker has become the best Bluetooth speaker you have ever owned. We designed it to balance monumental volume and crisp, clear audio across all musical genres, so it is fantastic to know that you are loving the impressive battery life and the powerful, clean bass. We especially appreciate you pointing out how beautifully it handles vocals for genres like Regional Mexican music, as well as sharing your great open-box find.

Thank you for choosing Sony to bring your favorite music to life with such amazing energy.

Best regards,
Dominick
Rated 5 out of 5 stars
Look No Further for Your Party Music!
EdgarP Posted 7 months ago
I absolutely love this music tower. It delivers powerful sound with mega bass that you can truly feel. The 360° Party Sound fills the entire space evenly, making it feel like a live concert no matter where you’re standing, and the 360° Party Lights add an exciting atmosphere that instantly elevates any gathering. The bass is deep and punchy without overpowering the music, and the sound pressure stays strong even at higher volumes. With up to 25 hours of battery life, it lasts all day and night, and the carrying handle and castors make it easy to move anywhere. The karaoke and guitar inputs are a huge bonus and make it perfect for parties, family events, or casual jam sessions. This speaker is fun, loud, and versatile, a true party essential.
I would recommend this to a friend
Comment
Brand response from SonyListens
Posted 7 months ago
Hi EdgarP,

We are ecstatic to learn that the ULT TOWER 9 has become such a party essential for you! It is wonderful to hear how much you are enjoying the powerful 360° Party Sound and immersive lighting, as well as the convenience provided by the long battery life and easy portability for your gatherings and jam sessions.

Thank you for choosing Sony!

Regards,
Dominick
Rated 4 out of 5 stars
Sony ULT Tower 9 short review
TheAscendedTechNinja Posted 10 months ago
The Sony Ult Tower 9 surprisingly impressed me after hearing the bass didn't go that deep but most people use it in ULT Mode 2 which is just upper bass with a brighter sound signature. With the Ult mode off this speaker still sounds pretty open with the 4 tweeters and 2 midrange drivers for a widespread but forward sound with the 12.5 inch woofer delivering enough bass to know you listen to a big speaker but not that much of a impressive speaker until you turn on ult mode 1 so whatever room you bring this speaker you will experience a strong 50Hz to punch to feel the vibrations in the air from the bass and the air thelar has enough low end extention to get that 35Hz movie theater experience while bass up to 65 Hz is still very solid. since this version does come with a battery it is very nice to roll from room to room but carrying this speaker outside sucks. Battery life is decent you can get about 3 and a half hours with the volume on 45% but I haven't preformed a real stamina test yet. It sounds a lot more open than the JBL Partybox 520 but the 520 is much better suited to be on the go and deliver much stronger low, sub bass but then again it can distort a lil while the Sony keeps its composure except for rapidly turning the volume up or down then youll here pops. So I can recommend this speaker as a large indoor party speaker with great sound and a lovely light show
I would recommend this to a friend
Comment
Brand response from SonyListens
Posted 10 months ago
Hi TheAscendedTechNinja,

Thank you for this incredibly detailed and insightful review of the Sony - ULT TOWER 9. We're thrilled that you're impressed with the sound quality and how our different ULT modes can tailor the experience, from the open sound signature to the powerful, room-shaking bass of ULT Mode 1.

We appreciate you highlighting the performance of the tweeters and midrange drivers that create such a wide soundstage. Your feedback on portability and the volume control is very valuable and has been shared with our product team.

It's great to hear that you'd recommend the ULT TOWER 9 as a powerful indoor party speaker. Thank you for your support and for choosing Sony!

Regards,
Dominick
Rated 5 out of 5 stars
King of battery powered party speakers!
TerryW Posted 1 year ago
I have the new! SONY ULT TOWER 9(wireless version)and the new JBL PARTY BOX 520....and the winner is..SONY!..sony heard the chatter about jbl's deep bass an not 1 to be out done sony came with this new Ult tower 9..with thunderous! bass! you can feel it in ur feet an body if you want or you can turn the bass down and the highs are loud and clear with or without the bass..the battery last long with playing it loud with bass..idk? how long but it lasted me a few hours with no signs of slowing down..the jbl's nice too though but the jbls (2)7.5in subs are great but Sony's (1)12in sub is to me more powerful.
I would recommend this to a friend
Comment
Brand response from SonyListens
Posted 1 year ago
Hi TerryW, we are truly wonderful to know that you are enjoying your new ULT TOWER 9 speaker! It’s fantastic to hear that you value its powerful bass and the clear sound quality, whether you prefer to amplify the bass or reduce it.
The remarkable battery life you've highlighted reflects the exceptional design and engineering behind this product, enabling you to enjoy uninterrupted music for hours on end.

Thank you for choosing Sony!
Best regards,
Estefany
Rated 5 out of 5 stars
Sony speaker
YessicaM Posted 1 year ago
Very nice, sounds great! The bass is nice and love the lights. Love that it last for a whole 24hrs without plugging it in.
I would recommend this to a friend
Comment
Brand response from SonyListens
Posted 1 year ago
Hi YessicaM! Thank you so much for your kind words! We are truly grateful to hear that you're enjoying the SRS-ULT900 speaker. It’s fantastic to know that the impressive bass and vibrant lights have made your experience even more enjoyable. Plus, with a remarkable battery life of up to 24 hours, you can take the party with you wherever you go!

Thank you for choosing Sony!
Best regards,
Estefany
Rated 5 out of 5 stars
Amazing
ReynaZ Posted 6 months ago
I like how it works, the duration of the battery last long and the size is perfect, it Is very good l love the sound and I recommend it 100 %
I would recommend this to a friend
Comment
Brand response from SonyListens
Posted 6 months ago
Hello ReynaZ,

Thank you for choosing Sony!

It brings us great joy to hear that you appreciate the SRSULT900 speaker’s performance, battery life, and perfect size. Your recommendation means a lot to us, and we're delighted the sound quality is enhancing your listening experience so well.

Best regards,
-Fred
Rated 5 out of 5 stars
Pleased
Greg Posted 9 months ago
Full,Rich sound. Connects more than 1 source at a time. It is heavy, but has nice built in wheels. Perfect party speaker!
I would recommend this to a friend
Comment
Brand response from SonyListens
Posted 9 months ago
Hi Greg,

Thank you for choosing Sony!

We're excited to hear that you're enjoying the full, rich sound of your SRSULT900 speaker! It's fantastic that the ability to connect more than one source at a time makes it your perfect party speaker. We appreciate you mentioning the built-in wheels to help manage its weight.

Best regards,
-Fred
Rated 5 out of 5 stars
Big Heavy Portable speaker!!
TerryL Posted 1 year ago
This speaker is big, heavy and loud!! For the price it an awesome buy! Its also has a battery that lasts for 25 hours..i have only playednit fornaboutn8 hours and it was still pounding!!! 360 degree sound!!!
I would recommend this to a friend
Comment
Brand response from SonyListens
Posted 1 year ago
Hi TerryL,

Thanks for the review and the 5-stars rating! We are delighted to hear how much you have been enjoying your Sony Party Speaker! Including an amazing bass, powerful sound pressure, 360° Party Sound and 360° Party Light that makes everywhere a concert venue. With up to 25-hours of battery life, plus a convenient carrying handle and castors, it's easy to take your speaker almost anywhere!

Thanks for choosing Sony, have an amazing day!
-DiegoV
Rated 5 out of 5 stars
WOW!!! I LOVE THE BASS!!! YES ALL CAPS!!
RodRomo Posted 6 months ago
WOW!!!! I mean WOW!!!! The bass on this tower is AMAZING. I can only imagine what it is going to sound like when I pair it to a 2nd one. I love how portable it is, the app is works as advertised. Using the optical cable connected to my tv...WOW, forget going to the theater. It looks small in the pic, but that is an 85" tv, pic does not do it justice.
I would recommend this to a friend
Comment
Brand response from SonyListens
Posted 6 months ago
Hi RodRomo!
Thanks for the feedback! It is fantastic to know that you are loving the massive sound and portability of your new ULT TOWER 9.

We appreciate you choosing Sony!
Best regards,
Estefany
Rated 5 out of 5 stars
10 Stars! A Speaker That Truly Delivers
MorrisK Posted 7 months ago
10 Stars! A Speaker That Truly Delivers I absolutely love this speaker! The sound quality is phenomenal—so much so that I’m already planning to buy another one to gift a friend in Africa. It’s that good. When I returned to Best Buy to pick up my iPad A6, one of the staff members asked how I liked the speaker. I told him it was amazing—actually, I said, “It’s a blast!” and his reaction said it all. Before purchasing, I asked the store manager which he’d choose between the XP700 and the ULT Power 9. He smiled and said, “Why would you go for something less?” We both laughed, and I knew I was making the right choice. This speaker has exceeded all my expectations. It’s powerful, clear, and perfect for any celebration. If you’re thinking about it—don’t hesitate. Treat yourself to a blast this New Year 2026. You won’t regret it!
I would recommend this to a friend
Comment
Brand response from SonyListens
Posted 7 months ago
Hi MorrisK,

It makes us really happy to hear that your experience with the ULT TOWER 9 has been such a "blast!"

Knowing that you are already planning to share the gift of phenomenal sound with a friend in Africa is the highest compliment we could receive. We hope you both have an amazing time ringing in the New Year 2026 with that massive bass!

Thank you for making Sony part of your daily listening.

Regards,
Dominick
Rated 5 out of 5 stars
Sony Ult 9 tower is Ultimate speaker 2Me
KennK Posted 8 months ago
I read and watch videos and read some more about the Sony ult 9 tower to make sure that I was getting the speaker I really wanted especially for my ears and the way I like music to hit. I also read up on the JBL 720 and 520. Everybody says the JBL hits harder and has better Bass but after getting the Sony i don't think so plus the Sony has way better mid-range and doesn't sound so Brassy. The sunny is very well balanced but it hits hard too and I mean hard even if I don't use the ult button it still hits hard but if you need that extra hard hit ult 1 or ult 2 will give it to you. Sony thank you job well done can't wait for the follow-up please add USB C and what would put it over the top is be the first one to give us a remote oh one last thing if you can make the volume increments a little bit more meaning more choices between the levels that you have now that would also make it the bomb! I definitely buy another one if they added those features
I would recommend this to a friend
Comment
Brand response from SonyListens
Posted 8 months ago
Thank you for the fantastic review, KennK!

We are absolutely thrilled to hear that you did your research and chose the SRS-ULT900 tower, and that it perfectly delivers the sound profile you enjoy! It is incredibly rewarding to know that you find the sound very well balanced with way better mid-range compared to competitors.

We designed the ULT POWER SOUND series to deliver hard-hitting, powerful bass, and we are delighted to hear you agree—even without using the ULT button! We appreciate you confirming that ULT 1 or ULT 2 gives you that perfect extra punch when you need it.

We also appreciate your extremely valuable feedback on potential enhancements for the follow-up model.
This type of specific feedback is instrumental to our engineering teams as they develop future generations of the ULT series.

Thank you again for making Sony a part of your music experience and for your strong recommendation!

Best regards, Gus, Sony Social Media Team
Rated 5 out of 5 stars
Killer sound
CardissD Posted 5 months ago
The sound is much more than what I expected. The accessories are cool such as the guitar jack. Perfect for plug and play. The lights are awesome and the bass is phenomenal. Overall best speaker I've ever had from Sony.
I would recommend this to a friend
Comment
Brand response from SonyListens
Posted 5 months ago
Hello CardissD,

Thank you for choosing Sony!

We’re elated to hear that the SRSULT900 speaker has exceeded your expectations with its sound quality, accessories, and impressive bass. It’s wonderful to know the features like the guitar jack and lights add to your enjoyment, making it a standout in your collection.

Best regards,
-Fred
Rated 5 out of 5 stars
The ULT Tower 9 by Sony.
Good Posted 1 year ago
This speaker is a good system the sound is very clear and loud the Bluetooth is easy to connect it stays charged for long it has colorful lights.
I would recommend this to a friend
Comment
Brand response from SonyListens
Posted 1 year ago
Hi Good, thank you for taking the time to share your thoughts about the ULT Tower 9 speaker! We are thrilled to hear that you are enjoying the clear and powerful sound quality, as well as the easy Bluetooth connectivity. It's fantastic to know that the long battery life and vibrant lights have added to your experience.

The SRS-ULT900 is designed to provide an immersive audio experience while being user-friendly, and your feedback reassures us that we’re on the right track.

Thank you for choosing Sony and we hope you continue to enjoy your speaker!
Best regards,
Estefany
Rated 5 out of 5 stars
Sony ULT 9 tower 25h
CarlosR Posted 4 months ago
Nice and loud great sound connect is very fast al the connection possibilities mic,blue tooth and more thanks best by
I would recommend this to a friend
Comment
Brand response from SonyListens
Posted 4 months ago
Hi CarlosR,

We are happy to hear that you are enjoying the powerful sound and fast connectivity of your ULT TOWER 9! It is great to know that the various connection options, like the microphone input and Bluetooth, are working well for you.

Thanks for choosing Sony.

Best regards,
Eliab
Rated 5 out of 5 stars
Best wireless speakers for parties!
JonasZ Posted 7 months ago
Excellent speakers very loud and very clear. The extended battery life is awesome for occasions in the outdoors. I have two of them and used them for a Christmas party and they were great.
I would recommend this to a friend
Comment
Brand response from SonyListens
Posted 7 months ago
Hi JonasZ,
Thank you for sharing your experience! We are really happy to hear that the SRS-ULT900 speakers delivered clear, loud sound and that the battery life worked well for your outdoor events.

We appreciate you choosing Sony!
Warm regards,
Estefany
Rated 5 out of 5 stars
Big and powerful
QSPR Posted 7 months ago
This beautiful speakers speak for herself. Sound's amazing and love the RGB. With the battery include you can take it anywhere and the karaoke feature is awesome.
I would recommend this to a friend
Comment
Brand response from SonyListens
Posted 7 months ago
Hi QSPR,
Thanks for the awesome feedback about the ULT TOWER 9! It brings us great joy to hear how much you love the sound and the lights on your new speaker.

We appreciate you choosing Sony!
Best regards,
Estefany
Rated 5 out of 5 stars
Best party speakers
Pratham Posted 6 months ago
This is the best party speaker. Thumping bass, clear sound, top notch battery life. It will change your karaoke experience!
I would recommend this to a friend
Comment
Brand response from SonyListens
Posted 6 months ago
Hi Pratham,

We are elated to hear that the ULT TOWER 9 has become your go-to party speaker! It’s wonderful to know that the thumping bass and clear sound are hitting the mark for you, and we’re especially glad the battery life is keeping the music going. We hope it continues to take your karaoke nights to a whole new level!

Thank you for making Sony part of your home entertainment.

Regards,
Dominick
Rated 5 out of 5 stars
Best father day gift ever
LeniaFb Posted 1 year ago
I bought as a gift to my hubby for Father's day. He loves playing loud music while work in construction in our home. He wanted one water proof battery las more than 25 hours. It's rechargeable as well. Clear sound and beautyful party lights.
I would recommend this to a friend
Comment
Brand response from SonyListens
Posted 1 year ago
Thank you so much for sharing your experience and for choosing the SRS-ULT900 as a special gift for Father's Day, LeniaFb! We're delighted to hear that your husband is enjoying the speaker while working on home construction projects and playing his favorite music loud.

The SRS-ULT900 is designed to keep up with active lifestyles and vibrant celebrations, making it a great fit for your needs. Its ULT Power Sound series ensures powerful, clear sound that's perfect for large spaces or noisy environments like construction areas. The unit is rechargeable, so you can enjoy wireless use without being tethered to an outlet.

For party lovers, the speaker features stunning party lights that bring a fun, festive atmosphere to any space. With support for Party Connect, you can even synchronize music and lighting across multiple compatible Sony speakers for a bigger sound and light experience.

Thank you again for your thoughtful review. We hope the SRS-ULT900 continues to provide great sound and memorable moments for you and your family!

Best regards,
Gus
Sony Social Media Team
Rated 5 out of 5 stars
Excelente
MaykelV Posted 9 months ago
Excellent choice! That Sony speaker looks amazing — powerful, stylish, and ready to light up any party with awesome sound and cool vibes!
I would recommend this to a friend
Comment
Brand response from SonyListens
Posted 9 months ago
Thank you for the excellent feedback, MaykelV!

We are delighted to hear that you think the SRS-ULT900 speaker looks amazing! It's fantastic to know that you recognize it as powerful, stylish, and ready to light up any party with awesome sound and cool vibes. We designed the ULT POWER SOUND series to be just that—a total package for high-energy fun.

Thanks again for choosing Sony!

Best regards, Gus, Sony Social Media Team