Different classes, so treat this as a step-up-or-not question rather than a head-to-head. The Sony ULT Tower 7 ranks #1 of 53 party speakers by sound quality at $649.99; the Sony ULT Tower 9 ranks #9 of 12 large party speakers by sound quality at $748.
The Tower 7 is the newer 360-degree design; the Tower 9 is the older larger Sony. Tower 7 specifies 420W, a claimed 30-hour battery, wheels, 10-band EQ and RCA/XLR/USB-C. Tower 9 has a 25-hour battery claim and a different older-generation driver arrangement.
Choose the Tower 7 for current inputs and all-around coverage: Its rear tweeters, XLR input and Sound Connect controls give it the more flexible event-speaker layout.
Choose the Tower 9 only when its older feature mix is the priority: Its larger cabinet does not by itself settle the decision; compare battery, weight and connection differences below.
Buy the Sony ULT Tower 7 at $649.99 for a party speaker, or the Sony ULT Tower 9 at $748 for a large party speaker instead.
Skip the Sony ULT Tower 9 if sound quality matters to you. It ranks near the bottom of the 12 large party speakers.
If water resistance matters to you, the Sony ULT Tower 7 at IPX4 (splashing) holds up far better than the Sony ULT Tower 9 at no water resistance.
Want more options? Browse the full Portable Bluetooth rankings.
Specifications Side By Side
| Sony ULT Tower 7 | Sony ULT Tower 9 | |
|---|---|---|
| Price | $649.99 | $748.00 |
| Ranked | #1 of 53 in Party Size Portable Bluetooth Speakers | #9 of 12 in Large Party Size Portable Bluetooth Speakers |
| App | Yes (Sony Sound Connect) | Yes |
| Aux Input | RCA input | Yes |
| Battery Life | 30 hours (lights off; manufacturer specified) | 25 hours (Manufacturer specified) |
| Bluetooth Codecs | SBC, AAC, LDAC | SBC, AAC, LDAC |
| Bluetooth Version | 5.3 | 5.3 |
| Built in Microphone | No | No |
| Digital Aux Input | Yes (USB-C) | No |
| Dimensions | 13.7" x 16.6" x 28" (348 x 422 x 711 mm) | 16.1" x 35.8" x 18" (410 x 910 x 456 mm) |
| Drivers | 7 drivers: 1x woofer, 2x midrange, 2x front tweeter, 2x rear tweeter | 7 drivers: 1x 12.6"x12.6" woofer, 2x 4.7" midrange, 2x 2" tweeter, 2x 1.6" rear tweeter |
| EQ | Yes (10 band; ULT1 / ULT2 / Flat) | Yes (10 band) |
| Guitar Input | No | Yes |
| IP Rating | IPX4 | None |
| Microphone Input | Yes | Yes (Karaoke mode with echo effect) |
| Omnidirectional | Yes (360 degree Party Sound) | No |
| Output Power | 420W | 148W |
| Party Mode | Yes (Auracast) | Yes (Auracast up to 100 speakers) |
| Power Bank | Yes (USB charging) | Yes (USB-A, 5V/1.5A) |
| Power Input | AC power cord | AC Power cord |
| Removable Battery | No | No |
| Stereo | Yes | Yes |
| TWS | Yes (Stereo Pair) | Yes |
| USB Playback | Yes (USB-A) | Yes |
| Weight | 50.3 lbs / 22.8 kg | 65.3 lbs / 29.6 kg |
| Wifi | No | No |
Related Speaker Comparisons
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- Sony ULT Tower 7 vs JBL Partybox 330
- Sony ULT Tower 7 vs JBL Partybox Stage 320
- Sony ULT Tower 5 vs Sony ULT Tower 7
- Sony ULT Tower 7 vs Sony SRS-XP700
- Sony ULT Tower 7 vs Sony SRS-XP500
Prices on this page were last checked September 12, 2026 at 9:50 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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The Two Speakers In Full
Sony ULT Tower 7: $649.99 Amazon eBay
Pros: A compelling large-party value at $649.99: 420W output, an IPX4-rated 30-hour battery, 360-degree sound, wheels and four carry handles at 22.8kg. The full review praises its punchy, clean ULT1 bass, ULT2’s higher-output mode, simplified controls and unusually complete I/O: USB-C, USB-A, RCA, balanced XLR and mic input.
Cons: The reviewer notes that Auracast pairing is not backward-compatible with Sony’s older Party Connect speakers, and the hard-plastic corners lack protective rubber bumpers. IPX4 is splash resistance rather than full weatherproofing; the 30-hour claim requires lights off.
Full Sony ULT Tower 7 review and specifications →
| App | Yes (Sony Sound Connect) |
|---|---|
| Aux Input | RCA input |
| Battery Life | 30 hours (lights off; manufacturer specified) |
| Bluetooth Codecs | SBC, AAC, LDAC |
| Bluetooth Version | 5.3 |
| Built in Microphone | No |
| Digital Aux Input | Yes (USB-C) |
| Dimensions | 13.7" x 16.6" x 28" (348 x 422 x 711 mm) |
| Drivers | 7 drivers: 1x woofer, 2x midrange, 2x front tweeter, 2x rear tweeter |
| EQ | Yes (10 band; ULT1 / ULT2 / Flat) |
| Guitar Input | No |
| IP Rating | IPX4 |
| Microphone Input | Yes |
| Omnidirectional | Yes (360 degree Party Sound) |
| Output Power | 420W |
| Party Mode | Yes (Auracast) |
| Power Bank | Yes (USB charging) |
| Power Input | AC power cord |
| Removable Battery | No |
| Stereo | Yes |
| TWS | Yes (Stereo Pair) |
| USB Playback | Yes (USB-A) |
| Weight | 50.3 lbs / 22.8 kg |
| Wifi | No |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
- Sony ULT Tower 7 vs JBL Partybox 330
- Sony ULT Tower 7 vs JBL Partybox Stage 320
- Sony ULT Tower 7 vs Sony ULT Tower 5
- Sony ULT Tower 7 vs Sony SRS-XP700
- Sony ULT Tower 7 vs Sony SRS-XP500
- Sony ULT Tower 7 vs JBL Partybox 520
- Sony ULT Tower 7 vs Sony ULT Tower Max
- Sony ULT Tower 7 vs Sony ULT Tower 10
Sony ULT Tower 9: $748.00 Amazon eBay
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) |
| Omnidirectional | No |
| 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 |
- Links
- Reviews, Comparisons and Sound Samples
- Oluv Patreon: Sony ULT Tower 9 vs JBL Partybox 720 - indoor listening test More from Oluv’Sone →
- 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 More from GYMCADDY →
- GYMCADDY: Sony ULT Tower 9 Review - Amazing Instrument Separation
- GYMCADDY: JBL Partybox 720 Vs Sony ULT Tower 9
- Joy & Oluv’Sone 3DAudio & Music: Sony ULT9 vs JBL Partybox 720 - the king of battery powered party speakers
- Head-to-Head Comparisons
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- Sony ULT Tower 9 vs JBL Partybox 710
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- Sony ULT Tower 9 vs JBL Partybox 720
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- See all 13 comparisons