Short answer: the Marshall Stockwell III. Both are rated 3.0/5 for sound quality (#84 and #85 of 120 large speakers), and the Marshall Stockwell III costs $249.99 against $330 for the Turtlebox Cub, with sound quality a draw, the lower price decides it.
The Stockwell III sounds muffled by default, with recessed highs even with the treble maxed, boomy bass, and harshness well below maximum volume. The Cub has only listening impressions so far: loud for its size, warm and bass-forward, with some bass loss at high volume.
The Cub is tougher, IP67 and crush resistant against the Stockwell III’s IP55. The Stockwell III is lighter, at 2.9 lbs (1.3 kg) against 5.3 lbs (2.4 kg).
Battery favors the Marshall: over 40 hours claimed, with a user-replaceable battery, against 14+ for the Cub. The Stockwell III also has an aux input and a parametric app EQ. Both have a power bank.
Buy the Marshall Stockwell III. Both are rated the same for sound quality, and it costs $80.01 less than the Turtlebox Cub.
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Specifications Side By Side
| Turtlebox Cub | Marshall Stockwell III | |
|---|---|---|
| Price | $330.00 | $249.99 |
| Ranked | #85 of 120 in Large Size Portable Bluetooth Speakers | #84 of 120 in Large Size Portable Bluetooth Speakers |
| Bluetooth Version | 5.4 | 5.3 |
| Drivers | 1x 4.5” (114mm) woofer + 1x 1.3” (33mm) titanium tweeter | 1x 3” woofer, 2x 1.75” wide-band drivers |
| Battery Life | 14+ hours (Manufacturer specified) | 40+ hours (Manufacturer specified) |
| IP Rating | IP67 | IP55 |
| Weight | 5.3 lbs (2.4 kg) | 2.9 lbs (1.3 kg) |
| Dimensions | 8.6”H x 7.2”W x 5.7”D (218 x 183 x 146 mm) | 7.1” x 6.4” x 2.9” (180 x 162 x 74 mm) |
| Power Bank | Yes (USB-C) | Yes |
| Power Input | USB-C | USB-C |
| Party Mode | Yes (Party Mode) | - |
| TWS | Yes | No |
| Stereo | No | Partially |
| Omnidirectional | No | Yes |
| Strap | No | Yes (detachable strap) |
| Bluetooth | Yes | Yes |
| Frequency Response | - | 54Hz - 20kHz (Manufacturer specified) |
| Amplifier Power | - | 44W |
| Bluetooth Codecs | - | SBC, AAC, LE Audio with LC3 |
| App | - | Yes |
| EQ | - | Yes (parametric, via app) |
| Aux Input | - | Yes |
| Digital Aux Input | - | No |
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