Short answer: the Sony ULT Tower 7 for endurance and inputs, the JBL PartyBox 330 for simpler transport. The Tower 7 claims 30 hours and 420W, adds XLR/RCA/USB-C and room-filling rear tweeters, and carries three sound modes and a 10-band EQ. The PartyBox 330 is the lighter wheeled cabinet, so it is the easier one to move frequently; compare the input and battery rows before choosing.
Both target substantial battery-powered parties, but they take different approaches. The Tower 7 uses three sound modes, 10-band EQ, wheels and a seven-driver 360-degree layout, while the PartyBox 330 focuses on JBL’s PartyBox platform and a lighter wheeled cabinet.
The Tower 7 advantage: A claimed 30-hour battery, 420W system, XLR/RCA/USB-C connectivity and room-filling rear tweeters give it more flexibility for long events and wired sources.
The PartyBox 330 advantage: Its lower weight and wheeled form factor make it the simpler option for frequent transport. Compare the input and battery rows below before choosing.
Buy the Sony ULT Tower 7. It is rated higher for sound quality than the JBL Partybox 330 and costs less, so it is the default pick unless a specific strength of the other one matters more to you.
Battery life favors the Sony ULT Tower 7: rated for 30 hours against 18 hours for the JBL Partybox 330.
Want more options? Browse the full Portable Bluetooth rankings.
A big, loud party speaker on wheels with punchy bass, a 30 hour battery, 360 degree sound and inputs for mics and instruments.
A rolling party speaker with deep bass, a removable battery, a light show and inputs for mics and a guitar.
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Specifications Side By Side
| Sony ULT Tower 7 | JBL Partybox 330 | |
|---|---|---|
| Price | $548.00 | $549.95 |
| Ranked | #1 of 50 in Party Size Portable Bluetooth Speakers | #2 of 50 in Party Size Portable Bluetooth Speakers |
| App | Yes (Sony Sound Connect) | Yes |
| Aux Input | RCA input | Yes |
| Battery Life | 30 hours (lights off; manufacturer specified) | 18 hours (Manufacturer specified) |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | SBC, AAC, LDAC | SBC |
| Bluetooth Version | 5.3 | 6.0 |
| Built-in Microphone | No | - |
| Digital Aux Input | Yes (USB-C) | No |
| Dimensions | 13.7” x 16.6” x 28” (348 x 422 x 711 mm) | 26.1”H x 13.1”W x 14.8”D (662.5 x 334 x 375 mm) |
| Drivers | 7 drivers: 1x woofer, 2x midrange, 2x front tweeter, 2x rear tweeter | 2x 6.5” (165mm) woofers + 2x 1” (25mm) PEN dome tweeters |
| EQ | Yes (10 band; ULT1 / ULT2 / Flat) | Yes (Smart EQ mode) |
| Guitar Input | No | Yes |
| IP Rating | IPX4 | IPX4 |
| Microphone Input | Yes | Yes (Karaoke mode with echo effect) |
| Omnidirectional | Yes (360 degree Party Sound) | No |
| Amplifier Power | 420W | 280W |
| Party Mode | Yes (Auracast) | Yes (Auracast) |
| Power Bank | Yes (USB charging) | Yes (USB-C, 5V/1A) |
| Power Input | AC power cord | AC Power cord |
| Removable Battery | No | Yes |
| Stereo | Yes | Partially |
| TWS | Yes (Stereo Pair) | Yes |
| USB Playback | Yes (USB-A) | Yes |
| Weight | 50.3 lbs (22.8 kg) | 37.7 lbs (17.1 kg) |
| Wi-Fi | No | - |
| Lights | Yes | Yes |
| Wheels | Yes | Yes |
| Strap | No | No |
| Charging Time | - | 3 hours |
| Inputs | - | Optical |
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