These are not really the same size class, and that is the honest framing here. The Sony ULT Tower Max ranks #1 of 13 large party speakers by sound quality at $1,498; the Soundboks Mix ranks #36 of 53 party speakers by sound quality at $799.
The case for the Sony ULT Tower Max: A very loud party speaker, with three big woofers for huge bass at large events. It has an adjustable EQ, which the Soundboks Mix lacks. It plays in stereo from a single unit, unlike the Soundboks Mix. Watch for: The same comparison found it 1.2dB behind the JBL in A-weighted loudness and weaker below 40Hz.
The Soundboks Mix is the battery-powered, lighter option. A rugged, weatherproof party speaker with a swappable battery that runs all day at mid volume and fast USB-C charging. Its battery is rated for 40 hours, while the Sony ULT Tower Max needs an outlet. At 21.4 lbs (9.7 kg) it weighs much less than the Sony ULT Tower Max at 124.1 lbs (56.3 kg). The catch: Doesn’t have as deep of bass as higher-ranked speakers, and can sound somewhat bright in the treble.
Buy the Sony ULT Tower Max at $1,498 for a large party speaker, or the Soundboks Mix at $799 for a party speaker instead.
Want more options? Browse the full Portable Bluetooth rankings.
Prices on this page were last checked November 7, 2026 at 7:34 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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Specifications Side By Side
| Sony ULT Tower Max | Soundboks Mix | |
|---|---|---|
| Price | $1,498.00 | $799 |
| Ranked | #1 of 13 in Large Party Size Portable Bluetooth Speakers | #36 of 53 in Party Size Portable Bluetooth Speakers |
| App | Yes (Sony Sound Connect) | No |
| Aux Input | RCA input | Yes |
| Battery Life | No Battery | 40 hours (Manufacturer specified) |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | SBC, AAC, LDAC | SBC (additional codecs unverified) |
| Bluetooth Version | 5.3 | 4.2 |
| Built-in Microphone | No | - |
| Digital Aux Input | No | No |
| Dimensions | 21” x 41.8” x 18.6” (534 x 1062 x 472 mm) | 19.1” x 13.5” x 10.9” (484 x 342 x 276 mm) |
| Drivers | 9 drivers: 3x 11” woofer (2 front, 1 rear), 2x 4.7” midrange, 2x 1” tweeter, 2x 1.6” rear tweeter | 10” woofer, 1.2” tweeter |
| EQ | Yes (10 band; ULT1 / ULT2 / Flat / Live) | No |
| Guitar Input | No | - |
| IP Rating | Splashproof top surface | IP65 |
| Microphone Input | Yes (6.3mm) | - |
| Omnidirectional | Yes (360 degree Party Sound) | No |
| Amplifier Power | 2,150W (manufacturer specified) | 72W |
| Party Mode | Yes (Party Chain) | Yes (TeamUp, up to 5 speakers) |
| Power Bank | Yes (USB charging) | No |
| Power Input | AC 120-240V, 50/60Hz | USB-C |
| Removable Battery | No | Yes |
| Stereo | Yes | No |
| TWS | Yes (Stereo Pair) | No |
| USB Playback | Yes (USB-A) | No |
| Weight | 124.1 lbs (56.3 kg) | 21.4 lbs (9.7 kg) |
| Wi-Fi | No | - |
| Lights | Yes | - |
| Wheels | Yes | - |
| Strap | No | - |
| Frequency Response | - | 40Hz - 20kHz (Manufacturer specified) |
| Maximum SPL | - | 121dB (Manufacturer specified) |
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