Short answer: the Sony ULT Tower 9. It ranks #8 of 11 large party speakers by sound quality at $800; the Sony SRS-XV900 ranks #10 and costs $900, so there is not much of a tradeoff to weigh.
What the Sony ULT Tower 9 offers: Slightly better sounding than the ULT Tower 10 Watch for: Not as deep of bass and loses more bass at high volume even compared to the lower end Partybox speakers.
What the Sony SRS-XV900 offers: Can get slightly louder than a Partybox 310. Watch for: Not as deep of bass and loses more bass at high volume compared to the Partybox 310 and every other speaker on this page
Buy the Sony ULT Tower 9. It ranks higher for sound quality than the Sony SRS-XV900 and costs less, so there is no real case for the other one.
If sound quality matters at all to you, skip the Sony SRS-XV900. It ranks near the bottom of the 11 large party speakers, so look higher up the list instead.
Specifications Side By Side
| Sony ULT Tower 9 | Sony SRS-XV900 | |
|---|---|---|
| Price | $800 | $900 |
| Ranked | #8 of 11 in Large Party Size Portable Bluetooth Speakers | #10 of 11 in Large Party Size Portable Bluetooth Speakers |
| App | Yes | Yes |
| Aux Input | Yes | Yes |
| Battery Life | 25 hours (Manufacturer specified) | 25 hours (Manufacturer specified) |
| EQ | Yes (10 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 | 65.3 lbs / 29.6 kg | 58.6 lbs / 26.6 kg |
| Built in Microphone | No | No |
| IP Rating | None | None |
| Stereo | Yes | Yes |
| Wifi | No | No |
| Bluetooth Codecs | SBC, AAC, LDAC | SBC, AAC, LDAC |
| Bluetooth Version | 5.3 | 5.2 |
| Dimensions | 16.1" x 35.8" x 18" (410 x 910 x 456 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 4.7" midrange, 2x 2" 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 |
| Output Power | 148W | 100W |
| Digital Aux Input | No | No |
| Optical Input | - | Yes |
Related Speaker Comparisons
More useful head-to-heads from the same speaker class:
- JBL Partybox 720 vs Sony ULT Tower 10
- JBL Partybox 720 vs Teufel Rockster
- JBL Partybox 710 vs Teufel Rockster
- JBL Partybox 710 vs Sony SRS-XV900
- Sony ULT Tower 10 vs Sony SRS-XV900
The Two Speakers In Full
Sony ULT Tower 9: $800 Amazon
Pros: Slightly better sounding than the ULT Tower 10
Cons: Not as deep of bass and loses more bass at high volume even compared to the lower end Partybox speakers. Bass drops off a lot at higher volumes. Not quite as loud as the ULT Tower 10
Full Sony ULT Tower 9 review and specifications →
| App | Yes |
|---|---|
| Aux Input | Yes |
| Battery Life | 25 hours (Manufacturer specified) |
| Bluetooth Codecs | SBC, AAC, LDAC |
| Bluetooth Version | 5.3 |
| Built in Microphone | No |
| Digital Aux Input | No |
| Dimensions | 16.1" x 35.8" x 18" (410 x 910 x 456 mm) |
| Drivers | 7 drivers: 1x 12.6"x12.6" woofer, 2x 4.7" midrange, 2x 2" tweeter, 2x 1.6" rear tweeter |
| EQ | Yes (10 band) |
| Guitar Input | Yes |
| IP Rating | None |
| Microphone Input | Yes (Karaoke mode with echo effect) |
| Output Power | 148W |
| Party Mode | Yes (Auracast up to 100 speakers) |
| Power Bank | Yes (USB-A, 5V/1.5A) |
| Power Input | AC Power cord |
| Removable Battery | No |
| Stereo | Yes |
| TWS | Yes |
| USB Playback | Yes |
| Weight | 65.3 lbs / 29.6 kg |
| Wifi | No |
As an eBay Partner, we may be compensated if you make a purchase.
- Links
- Reviews, Comparisons and Sound Samples
- Oluv Patreon: Sony ULT Tower 9 vs JBL Partybox 720 - indoor listening test
- Oluv Patreon: Sony ULT Tower 9 vs JBL Partybox 720 - power generator test
- GYMCADDY: Sony ULT Tower 9 Vs Sony ULT Tower 10 - Size Doesn’t Matter
- GYMCADDY: Sony ULT Tower 9 Review - Amazing Instrument Separation
- GYMCADDY: JBL Partybox 720 Vs Sony ULT Tower 9
- Reddit Search for Sony ULT Tower 9 Review
- Head-to-Head Comparisons
- Sony ULT Tower 9 vs Sony ULT Tower 10
- Sony ULT Tower 9 vs Teufel Rockster
- Sony ULT Tower 9 vs JBL Partybox 520
- Sony ULT Tower 9 vs JBL Partybox 710
- Sony ULT Tower 9 vs JBL Partybox 720
- Sony ULT Tower 9 vs Teufel Rockster 2
- Sony ULT Tower 9 vs JBL Partybox 1000
- Sony ULT Tower 9 vs JBL Partybox Ultimate
Sony SRS-XV900: $900 Amazon
Pros: Can get slightly louder than a Partybox 310. Handle and wheels are convenient.
Cons: Not as deep of bass and loses more bass at high volume compared to the Partybox 310 and every other speaker on this page
Full Sony SRS-XV900 review and specifications →
| App | Yes |
|---|---|
| Aux Input | Yes |
| Battery Life | 25 hours (Manufacturer specified) |
| Bluetooth Codecs | SBC, AAC, LDAC |
| Bluetooth Version | 5.2 |
| Built in Microphone | No |
| Digital Aux Input | No |
| Dimensions | 16.1" x 34.6" x 17.3" (410 x 880 x 439 mm) |
| Drivers | 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 |
| EQ | Yes |
| Guitar Input | Yes |
| IP Rating | None |
| Microphone Input | Yes (Karaoke mode with echo effect) |
| Optical Input | Yes |
| Output Power | 100W |
| Party Mode | Yes (Party Connect up to 100 speakers) |
| Power Bank | Yes (USB-A) |
| Power Input | AC Power cord |
| Removable Battery | No |
| Stereo | Yes |
| TWS | Yes |
| USB Playback | Yes |
| Weight | 58.6 lbs / 26.6 kg |
| Wifi | No |
As an eBay Partner, we may be compensated if you make a purchase.
- Links
- Reviews, Comparisons and Sound Samples
- Jay’s Straight Up Reviews & More: Sony SRS-XV900 vs JBL Partybox 310 - Can the JBL Middleweight 💪🏽 Compete With The Sony Heavyweight?
- Jay’s Straight Up Reviews & More: JBL Partybox 710 ☣️ vs Sony SRS XV900 ☢️- Basement Brawl Speaker Comparison. Can XV900 Top the 710❓
- GYMCADDY: Sony XV900 Review - Finally, A Good Speaker From Sony!
- Reddit Search for Sony SRS-XV900 Review
- Head-to-Head Comparisons