Short answer: the Sony ULT Tower 7 for mobile events, the ULT Tower Max for maximum output and bass. The Tower 7 claims 30 hours and 420W with wheels, 360-degree sound and a seven-driver layout, so it travels and runs without mains power. The Max moves to three 11-inch woofers, 2,150W and 124.1 lbs (56.3 kg) of AC-only hardware, and AudioTribe measured 110.6dBC at about 6m outdoors from it.
The Tower 7 is the battery-powered sweet spot; the Tower Max is a full AC event speaker. Tower 7 offers a claimed 30-hour battery, 420W output, wheels, 360-degree sound and a seven-driver layout. Tower Max moves to three 11-inch woofers, 2,150W specified output and 124.1 lbs (56.3 kg) of AC-only hardware.
Choose the Tower 7 for mobile events: It is far easier to transport, can run without mains power and still provides XLR, RCA and USB-C connectivity.
Choose the Tower Max for the highest output and bass: AudioTribe measured 110.6dBC at about 6m outdoors from the Max. Its size and AC requirement only make sense when that extra scale is genuinely needed.
Buy the Sony ULT Tower 7 ($548) for a party speaker; the Sony ULT Tower Max ($1,198) suits a large party speaker instead.
Looking for alternatives? See the complete 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 very loud party speaker, with three big woofers for huge bass at large events.
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Specifications Side By Side
| Sony ULT Tower 7 | Sony ULT Tower Max | |
|---|---|---|
| Price | $548.00 | $1,198.00 |
| Ranked | #1 of 51 in Party Size Portable Bluetooth Speakers | #1 of 13 in Large Party Size Portable Bluetooth Speakers |
| App | Yes (Sony Sound Connect) | Yes (Sony Sound Connect) |
| Aux Input | RCA input | RCA input |
| Battery Life | 30 hours (lights off; manufacturer specified) | No Battery |
| Bluetooth | Yes | Yes |
| 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) | 21” x 41.8” x 18.6” (534 x 1062 x 472 mm) |
| Drivers | 7 drivers: 1x woofer, 2x midrange, 2x front tweeter, 2x rear tweeter | 9 drivers: 3x 11” woofer (2 front, 1 rear), 2x 4.7” midrange, 2x 1” tweeter, 2x 1.6” rear tweeter |
| EQ | Yes (10 band; ULT1 / ULT2 / Flat) | Yes (10 band; ULT1 / ULT2 / Flat / Live) |
| Guitar Input | No | No |
| IP Rating | IPX4 | Splashproof top surface |
| Microphone Input | Yes | Yes (6.3mm) |
| Omnidirectional | Yes (360 degree Party Sound) | Yes (360 degree Party Sound) |
| Amplifier Power | 420W | 2,150W (manufacturer specified) |
| Party Mode | Yes (Auracast) | Yes (Party Chain) |
| Power Bank | Yes (USB charging) | Yes (USB charging) |
| Power Input | AC power cord | AC 120-240V, 50/60Hz |
| Removable Battery | No | No |
| Stereo | Yes | Yes |
| TWS | Yes (Stereo Pair) | Yes (Stereo Pair) |
| USB Playback | Yes (USB-A) | Yes (USB-A) |
| Weight | 50.3 lbs (22.8 kg) | 124.1 lbs (56.3 kg) |
| Wi-Fi | No | No |
| Lights | Yes | Yes |
| Wheels | Yes | Yes |
| Strap | No | No |
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