Short answer: the KEF Muo gen2. It ranks #97 of 175 medium speakers by sound quality (rated 3.1/5) at $249.99 and is still sold new; the Tribit Stormbox ranks #119 (rated 2.8/5) and is discontinued, so it is only an option used. The Tribit Stormbox’s replacement, the Tribit Stormbox 2, is rated 3.0/5 at $69.99.
The KEF Muo gen2 is the better-sounding option. KEF seemed to have fixed the rolled off treble and overall balance. It supports aptX Adaptive Bluetooth, which the Tribit Stormbox lacks. It links with other speakers (Auracast), which the Tribit Stormbox cannot. It has an adjustable EQ, which the Tribit Stormbox lacks. Watch for: Lacking deeper bass.
The Tribit Stormbox is the lighter pick. IPX7 water resistant, dual pairing for stereo setup, excellent battery life (20 hours), instant on/off buttons, 97dB max volume. At 1.2 lbs (535 g) it weighs noticeably less than the KEF Muo gen2 at 1.6 lbs (740 g). It keeps a wired aux input, which the KEF Muo gen2 lacks. The tradeoff: Muffled sounding, treble dips from 5kHz-12kHz.
Buy the KEF Muo gen2. It is rated higher for sound quality; the Tribit Stormbox is no longer sold new.
Still deciding? The full Portable Bluetooth rankings cover every ranked option.
Specifications Side By Side
| KEF Muo gen2 | Tribit Stormbox | |
|---|---|---|
| Price | $249.99 | $68 Discontinued |
| Ranked | #97 of 175 in Medium Size Portable Bluetooth Speakers | #119 of 175 in Medium Size Portable Bluetooth Speakers |
| App | Yes | No |
| Battery Life | 24 hours (Manufacturer specified) | 20 hours (Manufacturer specified) |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | SBC, aptX Adaptive up to 48 kHz 24 bit | SBC |
| IP Rating | IP67 | IPX7 |
| Party Mode | Yes (Auracast) | No |
| Stereo | Yes | No (360° mono; true stereo requires two paired StormBox units) |
| Omnidirectional | No | Yes |
| TWS | Yes | Yes |
| Digital Aux Input | Yes (USB-C) | No |
| Weight | 1.6 lbs (740 g) | 1.2 lbs (535 g) |
| Bluetooth Version | 5.4 | 5.0 |
| Drivers | 1x 58x117mm racetrack woofer, 1x 20mm tweeter | 2x 45mm full-range drivers + 2x passive radiators |
| Dimensions | 8.5” x 3.2” x 2.3” (216 x 82 x 59 mm) | 7.1” x 2.7” x 2.7” (180 x 68 x 68 mm) |
| Frequency Response | 43Hz - 20kHz (Manufacturer specified) | - |
| Amplifier Power | 40W | 20W |
| Maximum SPL | 90dB (Manufacturer specified) | 97dB (measured by Alan Ross Reviews) |
| Aux Input | No | Yes |
| EQ | Yes | No |
| Power Input | USB-C | USB-C |
| Aux Latency | - | 0ms |
| Bass Extension (-10dB) | - | 52Hz |
| Built-in Microphone | - | Yes |
| Bluetooth Latency | - | 166ms |
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Prices on this page were last checked October 12, 2026 at 4:13 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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The Two Speakers In Full
KEF Muo gen2: $249.99 Amazon $249.99 eBay
Pros: KEF seemed to have fixed the rolled off treble and overall balance
Cons: Lacking deeper bass. Very thuddy bass. Appears to be the exact same hardware but with updated tuning. Bass distorts as volume increases, and the claimed 43Hz extension is really only audible at low listening volumes, with a few seconds of lag after volume changes. Loses most of its bass off-axis. Customer reviews are mixed, ranging from praise for detail at low volume to complaints of a boxy, hollow sound.
Full KEF Muo gen2 review and specifications →
| Amplifier Power | 40W |
|---|---|
| App | Yes |
| Aux Input | No |
| Battery Life | 24 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC, aptX Adaptive up to 48 kHz 24 bit |
| Bluetooth Version | 5.4 |
| Digital Aux Input | Yes (USB-C) |
| Dimensions | 8.5” x 3.2” x 2.3” (216 x 82 x 59 mm) |
| Drivers | 1x 58x117mm racetrack woofer, 1x 20mm tweeter |
| EQ | Yes |
| Frequency Response | 43Hz - 20kHz (Manufacturer specified) |
| IP Rating | IP67 |
| Maximum SPL | 90dB (Manufacturer specified) |
| Omnidirectional | No |
| Party Mode | Yes (Auracast) |
| Power Input | USB-C |
| Stereo | Yes |
| TWS | Yes |
| Weight | 1.6 lbs (740 g) |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
Tribit Stormbox: $68 Discontinued eBay
Newer model: the Tribit Stormbox 2, ranked higher, rated 3/5, released May 2024. It adds app control, adjustable EQ and AAC. Battery life goes from 20 to 24 hours. See every Tribit Stormbox and Stormbox 2 generation.
Pros: IPX7 water resistant, dual pairing for stereo setup, excellent battery life (20 hours), instant on/off buttons, 97dB max volume. Measured bass extension of 52Hz (-10dB).
Cons: Muffled sounding, treble dips from 5kHz-12kHz. Listening from the front is the worst frequency response, lay it down facing up with xbass off for the smoothest response. Not technically a 360 speaker, only front and rear. Discontinued; Tribit has retired it, superseded by the Tribit Stormbox 2.
Full Tribit Stormbox review and specifications →
| Released | 2018 (8 years ago) |
|---|---|
| Amplifier Power | 20W |
| App | No |
| Aux Input | Yes |
| Aux Latency | 0ms |
| Bass Extension (-10dB) | 52Hz |
| Battery Life | 20 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC |
| Bluetooth Latency | 166ms |
| Bluetooth Version | 5.0 |
| Built-in Microphone | Yes |
| Digital Aux Input | No |
| Dimensions | 7.1” x 2.7” x 2.7” (180 x 68 x 68 mm) |
| Drivers | 2x 45mm full-range drivers + 2x passive radiators |
| EQ | No |
| IP Rating | IPX7 |
| Maximum SPL | 97dB (measured by Alan Ross Reviews) |
| Omnidirectional | Yes |
| Party Mode | No |
| Power Input | USB-C |
| Stereo | No (360° mono; true stereo requires two paired StormBox units) |
| TWS | Yes |
| Weight | 1.2 lbs (535 g) |
- Links
- Reviews, Comparisons and Sound Samples
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