These sit in different size classes, so this is not a straight ranking comparison. The JBL Partybox 720 ranks #5 of 12 large party speakers by sound quality at $1,099.95; the Sony ULT Tower 7 ranks #1 of 40 party speakers by sound quality at $649.99.
Two sizes, one decision about how big your party is. The PartyBox 720 is a large party speaker at 31 kg and 94 cm tall with two 9 inch woofers and 800W. The ULT Tower 7 is a party speaker at 22.8 kg with 420W. Each is rated within its own class.
The 720 is built for scale. Testing confirms very high output and strong bass that can cover a backyard or large event. It runs on two removable batteries with a claimed 15 hours, and has karaoke and guitar inputs, USB-C playback, Auracast and a light show. Its front-facing layout sounds uneven to people at the sides or behind, and the default tuning is dark and bass heavy, so plan on using the app EQ.
The ULT Tower 7 spreads sound in 360 degrees with rear tweeters, and claims 30 hours of battery with the lights off. Its punchy, clean ULT1 bass mode and unusually complete inputs, including balanced XLR, RCA and a mic input, make it a flexible DJ or karaoke speaker. It supports LDAC and AAC. Its battery is not removable, and its Auracast does not link with Sony’s older Party Connect speakers.
Both are IPX4, so both handle splashes but not rain.
Buy the JBL Partybox 720 ($1,099.95) for a large party speaker; the Sony ULT Tower 7 ($649.99) suits a party speaker instead.
Looking for alternatives? See the complete Portable Bluetooth rankings.
Specifications Side By Side
| JBL Partybox 720 | Sony ULT Tower 7 | |
|---|---|---|
| Price | $1,099.95 | $649.99 |
| Ranked | #5 of 12 in Large Party Size Portable Bluetooth Speakers | #1 of 40 in Party Size Portable Bluetooth Speakers |
| App | Yes | Yes (Sony Sound Connect) |
| Aux Input | Yes | RCA input |
| Battery Life | 15 hours (Manufacturer specified) | 30 hours (lights off; manufacturer specified) |
| Bluetooth Codecs | SBC | SBC, AAC, LDAC |
| EQ | Yes (5 band) | Yes (10 band; ULT1 / ULT2 / Flat) |
| Guitar Input | Yes | No |
| IP Rating | IPX4 | IPX4 |
| Microphone Input | Yes (Karaoke mode with echo effect) | Yes |
| Party Mode | Yes (Auracast) | Yes (Auracast) |
| Power Bank | Yes (USB-C) | Yes (USB charging) |
| Power Input | AC Power cord | AC power cord |
| Removable Battery | Yes | No |
| TWS | Yes | Yes (Stereo Pair) |
| USB Playback | Yes | Yes (USB-A) |
| Weight | 68.3 lbs (31 kg) | 50.3 lbs (22.8 kg) |
| Built-in Microphone | No | No |
| Stereo | Yes | Yes |
| Omnidirectional | No | Yes (360 degree Party Sound) |
| Wi-Fi | No | No |
| Bluetooth Version | 5.4 | 5.3 |
| Dimensions | 16.4” x 37.1” x 16” (416 x 942 x 406 mm) | 13.7” x 16.6” x 28” (348 x 422 x 711 mm) |
| Drivers | 2x 9” woofer, 2x 1.25” dome tweeter | 7 drivers: 1x woofer, 2x midrange, 2x front tweeter, 2x rear tweeter |
| Amplifier Power | 800W | 420W |
| Digital Aux Input | No | Yes (USB-C) |
| Lights | Yes | Yes |
| Wheels | Yes | Yes |
| Strap | No | No |
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Prices on this page were last checked September 26, 2026 at 11:14 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
JBL Partybox 720: $1,099.95 Amazon B&H Photo Video eBay
Older model: the JBL Partybox 710 (rated 4.7/5).
Pros: JBL’s most powerful battery-equipped PartyBox combines 800W output, two removable batteries, wheels, a light show, Auracast, USB-C playback, app EQ and karaoke/guitar inputs. Independent testing confirms very high output, strong bass and a flexible 5- or 7-band EQ; it can easily cover a backyard or large event.
Cons: At 31kg and 94cm tall, it is still cumbersome despite the wheels. Its front-facing vertical driver layout gives uneven sound to listeners at the sides or behind it, bass compresses at very high volume and reviewers note a faint hiss. The default is dark/bass-heavy, so use the app EQ and do not expect a neutral indoor hi-fi speaker.
Full JBL Partybox 720 review and specifications →
| Amplifier Power | 800W |
|---|---|
| App | Yes |
| Aux Input | Yes |
| Battery Life | 15 hours (Manufacturer specified) |
| Bluetooth Codecs | SBC |
| Bluetooth Version | 5.4 |
| Built-in Microphone | No |
| Digital Aux Input | No |
| Dimensions | 16.4” x 37.1” x 16” (416 x 942 x 406 mm) |
| Drivers | 2x 9” woofer, 2x 1.25” dome tweeter |
| EQ | Yes (5 band) |
| Guitar Input | Yes |
| IP Rating | IPX4 |
| Lights | Yes |
| Microphone Input | Yes (Karaoke mode with echo effect) |
| Omnidirectional | No |
| Party Mode | Yes (Auracast) |
| Power Bank | Yes (USB-C) |
| Power Input | AC Power cord |
| Removable Battery | Yes |
| Stereo | Yes |
| Strap | No |
| TWS | Yes |
| USB Playback | Yes |
| Weight | 68.3 lbs (31 kg) |
| Wheels | Yes |
| Wi-Fi | No |
- Links
- Reviews, Comparisons and Sound Samples
- Oluv Patreon: JBL Partybox 720 - indoor EQ More from Oluv’Sone →
- Oluv Patreon: JBL Partybox 520 & 720 - indoor listening session
- Oluv Patreon: JBL Partybox 520 vs 720 - outdoor test
- Oluv Patreon: JBL Partybox 720 - first impressions
- Oluv Patreon: JBL Partybox 720 vs Teufel Rockster Neo - outdoor test
- Oluv Patreon: JBL Partybox 720 vs Marshall Bromley 750 - outdoor test
- Oluv Patreon: JBL Partybox 720 - first impressions
- 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: JBL Partybox 720 Vs JBL Partybox 520 More from GYMCADDY →
- GYMCADDY: JBL Partybox 720 Review
- GYMCADDY: JBL Partybox 720 Vs JBL Partybox Ultimate
- GYMCADDY: JBL Partybox 720 Vs Sony ULT Tower 9
- AudioTribe: JBL Partybox 720 vs JBL Partybox 520 Who’s Better?
- M1MTechChannel: Vorsicht LAUT ⚠️ | Teufel Rockster 2 vs JBL Partybox 720 / Ultimate More from M1MTechChannel →
- M1MTechChannel: Welche JBL Partybox ist die BESTE ? Alle Partyboxen im Vergleich | 2026
- M1MTechChannel: JBL Partybox 720 | Was hat JBL denn da gemacht?!
- Joy & Oluv’Sone 3DAudio & Music: Sony ULT9 vs JBL Partybox 720 - the king of battery powered party speakers
- Head-to-Head Comparisons
- JBL Partybox 720 vs Teufel Rockster 2
- JBL Partybox 720 vs JBL Partybox 710
- JBL Partybox 720 vs JBL Partybox 520
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- See all 19 comparisons
Sony ULT Tower 7: $649.99 Amazon eBay
Pros: A compelling large-party value at $650: 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 →
| Amplifier Power | 420W |
|---|---|
| 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 |
| Lights | Yes |
| Microphone Input | Yes |
| Omnidirectional | Yes (360 degree Party Sound) |
| Party Mode | Yes (Auracast) |
| Power Bank | Yes (USB charging) |
| Power Input | AC power cord |
| Removable Battery | No |
| Stereo | Yes |
| Strap | No |
| TWS | Yes (Stereo Pair) |
| USB Playback | Yes (USB-A) |
| Weight | 50.3 lbs (22.8 kg) |
| Wheels | Yes |
| Wi-Fi | 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 JBL Partybox Club 120
- Sony ULT Tower 7 vs JBL Partybox 130
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- Sony ULT Tower 7 vs Onn XL Wireless Party Speaker
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