These are not really the same size class, and that is the honest framing here. The Sony ULT Tower 7 ranks #1 of 53 party speakers by sound quality at $648; the Turtlebox Grande ranks #81 of 113 boombox speakers by sound quality at $730.
What the Sony ULT Tower 7 does well: A big, loud party speaker on wheels with punchy bass, a 30 hour battery, 360 degree sound and inputs for mics and instruments. It supports LDAC Bluetooth, which the Turtlebox Grande lacks. It has an adjustable EQ, which the Turtlebox Grande lacks. Watch for: 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.
The Turtlebox Grande is the lighter, tougher pick. A rugged, submersible, crush-proof speaker with a 10 inch woofer and a battery that lasts for days. At 18.8 lbs (8.53 kg) it weighs much less than the Sony ULT Tower 7 at 50.3 lbs (22.8 kg). It is rated IP67 against IPX4 for the Sony ULT Tower 7. Watch for: In YouTube sound samples it sounds only okay, and bass is shallow for a 10 inch woofer, only down 10dB at about 55Hz.
Buy the Sony ULT Tower 7 ($648) for a party speaker; the Turtlebox Grande ($730) suits a boombox speaker instead.
Looking for alternatives? See the complete 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 7 | Turtlebox Grande | |
|---|---|---|
| Price | $648.00 | $730.00 |
| Ranked | #1 of 53 in Party Size Portable Bluetooth Speakers | #81 of 113 in Boombox Size Portable Bluetooth Speakers |
| App | Yes (Sony Sound Connect) | No |
| Aux Input | RCA input | Yes |
| Battery Life | 30 hours (lights off; manufacturer specified) | 25 hours (Manufacturer specified) |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | SBC, AAC, LDAC | SBC |
| Bluetooth Version | 5.3 | 5.4 |
| Built-in Microphone | No | Yes |
| Digital Aux Input | Yes (USB-C) | No |
| Dimensions | 13.7” x 16.6” x 28” (348 x 422 x 711 mm) | 14” x 8.4” x 11.5” (355.6 x 213.4 x 292.1 mm) |
| Drivers | 7 drivers: 1x woofer, 2x midrange, 2x front tweeter, 2x rear tweeter | 1x 10” (254mm) woofer + 1x 1.25” (32mm) titanium tweeter |
| EQ | Yes (10 band; ULT1 / ULT2 / Flat) | No |
| Guitar Input | No | - |
| IP Rating | IPX4 | IP67 |
| Microphone Input | Yes | - |
| Omnidirectional | Yes (360 degree Party Sound) | No |
| Amplifier Power | 420W | 86W |
| Party Mode | Yes (Auracast) | Yes (Turtlebox Party Mode) |
| Power Bank | Yes (USB charging) | Yes (USB-C) |
| Power Input | AC power cord | DC Barrel Connector (20V/3A) |
| Removable Battery | No | - |
| Stereo | Yes | Yes |
| TWS | Yes (Stereo Pair) | Yes |
| USB Playback | Yes (USB-A) | No |
| Weight | 50.3 lbs (22.8 kg) | 18.8 lbs (8.53 kg) |
| Wi-Fi | No | - |
| Lights | Yes | - |
| Wheels | Yes | - |
| Strap | No | No |
| Bass Extension (-10dB) | - | ~55Hz |
| MicroSD Playback | - | Yes |
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