Short answer: the Harman Kardon Luna 2. It ranks #25 of 177 medium speakers by sound quality, rated 4.1/5, at $199.95. The Tribit Stormbox 2 ranks #104, rated 3.0/5, at $69.99, $129.96 cheaper, which does not close the gap in sound quality.
The Harman Kardon Luna 2 is the better-sounding choice. A stylish waterproof speaker with clear, spacious mids, tight bass that stays clean at volume, and stereo pairing with a second unit. The tradeoff: Treble can sound bright and edgy, and it loses more output off-axis than some rivals.
The Tribit Stormbox 2 is the longer-running pick. A light, waterproof everyday speaker with a long rated battery and an Xbass mode that fills out the low end. It is rated for 24 hours of battery against 12 for the Harman Kardon Luna 2. It supports AAC Bluetooth, which the Harman Kardon Luna 2 lacks. It keeps a wired aux input, which the Harman Kardon Luna 2 lacks. The tradeoff: Drivers on the side, so it will have a rolled off treble listening to it face on.
Buy the Harman Kardon Luna 2. It is rated higher for sound quality, and the $129.96 saving on the Tribit Stormbox 2 is not enough to make up the difference.
Want more options? Browse the full Portable Bluetooth rankings.
A stylish waterproof speaker with clear, spacious mids, tight bass that stays clean at volume, and stereo pairing with a second unit.
A light, waterproof everyday speaker with a long rated battery and an Xbass mode that fills out the low end.
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Specifications Side By Side
| Harman Kardon Luna 2 | Tribit Stormbox 2 | |
|---|---|---|
| Price | $199.95 | $69.99 |
| Ranked | #25 of 177 in Medium Size Portable Bluetooth Speakers | #104 of 177 in Medium Size Portable Bluetooth Speakers |
| App | Yes | Yes |
| Aux Input | No | Yes |
| Battery Life | 12 hours (Manufacturer specified) | 24 hours (Manufacturer specified) |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | SBC | SBC, AAC |
| EQ | Yes (4 presets + custom) | Yes |
| IP Rating | IP67 | IPX7 |
| MicroSD Playback | No | - |
| Power Input | USB-C | USB-C |
| Stereo | No | No (front/rear drivers) |
| Omnidirectional | No | Yes |
| TWS | Yes | Yes |
| USB Playback | No | - |
| Weight | 1.6 lbs (735 g) | 1.3 lbs (593 g) |
| Bluetooth Version | 5.4 | 5.3 |
| Dimensions | 8.5” x 3.3” x 3.2” (216 x 84 x 81 mm) | 7.1” x 2.7” x 2.7” (180 x 69 x 69 mm) |
| Drivers | 62mm x 82mm woofer with passive radiator, 20mm tweeter | 2x 48mm fullrange |
| Frequency Response | 58Hz - 20kHz (-6dB) (Manufacturer specified) | 70Hz - 20kHz (Manufacturer specified) |
| Amplifier Power | 40W (25W woofer + 15W tweeter) | 34W RMS |
| Digital Aux Input | No | No |
| Strap | No | - |
| Aux Latency | - | 200ms |
| Built-in Microphone | - | Yes |
| Bluetooth Latency | - | 400ms AAC, 400ms SBC |
| Maximum SPL | - | 99dB (measured by Alan Ross Reviews) |
| Party Mode | - | No |
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