Short answer: the KEF Muo gen2 if sound quality matters most, the DBSONO X-Blast F37 if price matters most. The KEF Muo gen2 ranks #96 of 179 medium speakers, rated 3.1/5, at $249.99. The DBSONO X-Blast F37 ranks #117, rated 2.8/5, at $69.99, $180 cheaper.
The KEF Muo gen2 is the better-sounding, longer-running choice. A stylish waterproof stereo speaker with aptX Adaptive, USB-C audio input, Auracast and long battery life. It is rated for 24 hours of battery against 8 for the DBSONO X-Blast F37. It is rated IP67 against IPX5 for the DBSONO X-Blast F37. It plays in stereo from a single unit, unlike the DBSONO X-Blast F37. Watch for: Lacking deeper bass.
What the DBSONO X-Blast F37 does well: An affordable splash resistant speaker with a separate woofer and tweeter, long Bluetooth range and stereo pairing. The tradeoff: Very recessed lower mids, peaky upper mids, just not a great frequency response overall.
Buy the KEF Muo gen2 when sound quality outweighs the price for you, and the DBSONO X-Blast F37 when the price outweighs sound quality instead.
Want more options? Browse the full 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
| KEF Muo gen2 | DBSONO X-Blast F37 | |
|---|---|---|
| Price | $249.99 | $69.99 |
| Ranked | #96 of 179 in Medium Size Portable Bluetooth Speakers | #117 of 179 in Medium Size Portable Bluetooth Speakers |
| App | Yes | - |
| Battery Life | 24 hours (Manufacturer specified) | 8 hours (Manufacturer specified) |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | SBC, aptX Adaptive up to 48 kHz 24 bit | SBC (inferred; additional codecs unverified) |
| IP Rating | IP67 | IPX5 |
| Party Mode | Yes (Auracast) | - |
| Stereo | Yes | No |
| Omnidirectional | No | No |
| TWS | Yes | Yes |
| Digital Aux Input | Yes (USB-C) | No |
| Weight | 1.6 lbs (740 g) | 1.7 lbs (771 g) |
| Bluetooth Version | 5.4 | 6.0 |
| Drivers | 1x 58x117mm racetrack woofer, 1x 20mm tweeter | 25W woofer, 10W tweeter, passive radiator |
| Dimensions | 8.5” x 3.2” x 2.3” (216 x 82 x 59 mm) | 8” x 2.5” x 3.6” (202 x 64 x 90.9 mm) |
| Frequency Response | 43Hz - 20kHz (Manufacturer specified) | 100Hz - 20kHz (Manufacturer specified) |
| Amplifier Power | 40W | 35W |
| Maximum SPL | 90dB (Manufacturer specified) | - |
| Aux Input | No | No |
| EQ | Yes | Yes (Bass Boost) |
| Power Input | USB-C | USB-C |
| Bass Extension (-10dB) | - | 49Hz |
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