Short answer: the Turtlebox Gen 3 if you want a smaller, lighter package; the JBL Partybox 330 if you want party-size output. The Partybox 330 is a full size class up in power and bass, with a removable battery, wheels and handle and a customizable lightshow, though it is very large and its daisychain party mode only works with other JBL speakers. The Gen 3 is the more portable option but ranks near the bottom of the boombox class here.

Buy the Turtlebox Gen 3 at $430 if you want a boombox speaker. Buy the JBL Partybox 330 at $629.95 if you want a party speaker instead.
There is a real gap in water resistance: the Turtlebox Gen 3 at IP67 (brief submersion) against the JBL Partybox 330, which has IPX4 (splashing).
Looking for alternatives? See the complete Portable Bluetooth rankings.
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Specifications Side By Side
| Turtlebox Gen 3 | JBL Partybox 330 | |
|---|---|---|
| Price | $430.00 | $629.95 |
| Ranked | #105 of 113 in Boombox Size Portable Bluetooth Speakers | #2 of 53 in Party Size Portable Bluetooth Speakers |
| Aux Input | Yes | Yes |
| Bass Extension (-10dB) | ~65Hz | - |
| Battery Life | 25 hours (Manufacturer specified) | 18 hours (Manufacturer specified) |
| IP Rating | IP67 | IPX4 |
| MicroSD Playback | Yes | - |
| Stereo | Yes | Partially |
| Omnidirectional | No | No |
| Weight | 10 lbs (4.54 kg) | 37.7 lbs (17.1 kg) |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | SBC | SBC |
| App | No | Yes |
| EQ | No | Yes (Smart EQ mode) |
| TWS | Yes | Yes |
| Party Mode | Yes (Turtlebox Party Mode) | Yes (Auracast) |
| Power Bank | Yes (USB-C) | Yes (USB-C, 5V/1A) |
| USB Playback | No | Yes |
| Built-in Microphone | No | - |
| Power Input | DC Barrel Connector (15V/3A) | AC Power cord |
| Bluetooth Version | 5.4 | 6.0 |
| Amplifier Power | 50W | 280W |
| Dimensions | 12” x 7” x 8.7” (305 x 178 x 222 mm) | 26.1”H x 13.1”W x 14.8”D (662.5 x 334 x 375 mm) |
| Drivers | 1x 6x9” (152x228mm) woofer + 1x 1” (25mm) tweeter | 2x 6.5” (165mm) woofers + 2x 1” (25mm) PEN dome tweeters |
| Digital Aux Input | No | No |
| Strap | No | No |
| Microphone Input | Yes (3.5mm) | Yes (Karaoke mode with echo effect) |
| Battery Capacity | 85Wh | - |
| Maximum SPL | 102dB (measured by Williston Audio Labs) | - |
| Charging Time | - | 3 hours |
| Guitar Input | - | Yes |
| Inputs | - | Optical |
| Removable Battery | - | Yes |
| Lights | - | Yes |
| Wheels | - | Yes |
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