Short answer: the Sony ULT Tower 10, though neither is a sound-quality pick. It ranks #11 of 13 large party speakers at $994.34, one spot ahead of the SRS-XV900 at #12 for $900. Both sit near the bottom of their class, so this is really a choice between two similar tradeoffs rather than a clear win. The Sony SRS-XV900 is discontinued; its replacement is the Sony ULT Tower 9.
Bass is the shared weak point for both speakers. The ULT Tower 10’s own notes say it isn’t as deep in the bass and loses more bass at high volume than even lower-end Partybox speakers, despite being louder than the Partybox Ultimate. The SRS-XV900’s notes go further, describing it as losing more bass at high volume than the Partybox 310 and every other speaker Sony compared it against, even though it can get slightly louder than that Partybox 310.
The SRS-XV900 actually packs more drivers, but it doesn’t translate to a ranking win. It uses 9 drivers total, including larger 4.7-inch midranges and 2-inch front tweeters, versus 7 drivers on the ULT Tower 10 with smaller 3.1-inch midranges. The ULT Tower 10 counters with more output power at 139W versus 100W, and it’s the newer design, including an included wireless microphone and Auracast party mode versus the SRS-XV900’s Sony Party Connect.
If sound quality genuinely matters to you, both notes suggest looking elsewhere in the category rather than choosing between these two on tonal merit alone.
Buy the Sony ULT Tower 10 if you want the current-generation model with a wireless mic included and slightly more output power.
Buy the Sony SRS-XV900 only if you find one secondhand at a meaningfully lower price than the ULT Tower 10, since Sony has moved on from this line.
Want more options? Browse the full Portable Bluetooth rankings.
Prices on this page were last checked November 14, 2026 at 6:17 PM UTC. Product prices and availability are accurate as of that date/time and are subject to change; the price and availability shown on Amazon at the time of purchase will apply to the purchase of this product.
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Specifications Side By Side
| Sony ULT Tower 10 | Sony SRS-XV900 | |
|---|---|---|
| Price | $994.34 | $900 Discontinued |
| Ranked | #11 of 13 in Large Party Size Portable Bluetooth Speakers | #12 of 13 in Large Party Size Portable Bluetooth Speakers |
| App | Yes | Yes |
| Aux Input | Yes | Yes |
| Battery Life | No Battery | 25 hours (Manufacturer specified) |
| EQ | Yes (7 band) | Yes |
| Guitar Input | Yes | Yes |
| Microphone Input | Yes (Karaoke mode with echo effect) | Yes (Karaoke mode with echo effect) |
| Party Mode | Yes (Auracast up to 100 speakers) | Yes (Party Connect up to 100 speakers) |
| Power Bank | Yes (USB-A, 5V/1.5A) | Yes (USB-A) |
| Power Input | AC Power cord | AC Power cord |
| Removable Battery | No | No |
| TWS | Yes | Yes |
| USB Playback | Yes | Yes |
| Weight | 63.9 lbs (29 kg) | 58.6 lbs (26.6 kg) |
| Wireless Microphones | Yes Included | - |
| Built-in Microphone | No | No |
| IP Rating | None | None |
| Stereo | Yes | Yes |
| Omnidirectional | No | No |
| Wi-Fi | No | No |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | SBC, AAC, LDAC | SBC, AAC, LDAC |
| Bluetooth Version | 5.2 | 5.2 |
| Dimensions | 16.5” x 43.5” x 16.9” (418 x 1106 x 428 mm) | 16.1” x 34.6” x 17.3” (410 x 880 x 439 mm) |
| Drivers | 7 drivers: 1x 12.6”x12.6” woofer, 2x 3.1” midrange, 2x 1.6” tweeter, 2x 1.6” rear tweeter | 9 drivers: 1x 12.6”x12.6” woofer, 2x 4.7” midrange, 2x 2” front tweeter, 2x 1.6” side tweeter, 2x 1.6” rear tweeter |
| Amplifier Power | 139W | 100W |
| Digital Aux Input | No | No |
| Lights | Yes | Yes |
| Strap | No | No |
| Inputs | - | Optical |
| Wheels | - | Yes |
Where the Ratings Come From
- Sony ULT Tower 10: reviews by GYMCADDY.
- Sony SRS-XV900: reviews by Jay’s Straight Up Reviews & More and GYMCADDY.
This comparison is generated from the ratings, specifications and measurements on each product’s own page, and it updates when that data changes. How we rank explains how each rating is decided.
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