Short answer: the Harman Kardon Luna. It ranks #22 of 134 medium speakers at $169.95; the KEF Muo gen2 ranks #72 and costs $249.99, so there is not much of a tradeoff to weigh.
The case for the Harman Kardon Luna: Pretty balanced sound besides the boosted bass. The catch: Not stereo.
What the KEF Muo gen2 gets right: KEF seemed to have fixed the rolled off treble and overall balance. The catch: Lacking deeper bass.
Buy the Harman Kardon Luna if the ranking matters more than the price. Buy the KEF Muo gen2 if the price matters more than the ranking.
Specifications Side By Side
| Harman Kardon Luna | KEF Muo gen2 | |
|---|---|---|
| Price | $169.95 | $249.99 |
| Ranked | #22 of 134 in Medium Size Portable Bluetooth Speakers | #72 of 134 in Medium Size Portable Bluetooth Speakers |
| App | No | Yes |
| Aux Input | No | - |
| Bass Extension (-10dB) | 57Hz | - |
| Battery Life | 12 hours (Manufacturer specified) | 24 hours (Manufacturer specified) |
| Bluetooth Codecs | SBC | SBC, aptX Adaptive up to 48 KHz 24 bit |
| EQ | No | - |
| IP Rating | IP67 | IP67 |
| MicroSD Playback | No | - |
| Power Input | USB-C | - |
| Stereo | No | Yes |
| TWS | Yes | Yes |
| USB Playback | Yes | - |
| Weight | 2.5 lbs / 1.13 kg | 1.6 lbs / 740 g |
| Bluetooth Version | 5.3 | 5.4 |
| Dimensions | 8.3" x 3.1" x 3.1" (210 x 78 x 80 mm) | 8.5" x 3.2" x 2.3" (216 x 82 x 59 mm) |
| Drivers | 48mm x 90mm woofer, 20mm tweeter | 1x 58x117mm racetrack woofer, 1x 20mm tweeter |
| Frequency Response | 60Hz - 20kHz (Manufacturer specified) | 43Hz - 20kHz (Manufacturer specified) |
| Output Power | 40W | 40W |
| Party Mode | - | Auracast |
| USB Audio | - | Yes |
| Max Volume | - | 90dB |
The Two Speakers In Full
Harman Kardon Luna: $169.95 Amazon
Pros: Pretty balanced sound besides the boosted bass.
Cons: Not stereo. Boosted bass, not as detailed as higher ranked speakers
| App | No |
|---|---|
| Aux Input | No |
| Bass Extension (-10dB) | 57Hz |
| Battery Life | 12 hours (Manufacturer specified) |
| Bluetooth Codecs | SBC |
| Bluetooth Version | 5.3 |
| Dimensions | 8.3" x 3.1" x 3.1" (210 x 78 x 80 mm) |
| Drivers | 48mm x 90mm woofer, 20mm tweeter |
| EQ | No |
| Frequency Response | 60Hz - 20kHz (Manufacturer specified) |
| IP Rating | IP67 |
| MicroSD Playback | No |
| Output Power | 40W |
| Power Input | USB-C |
| Stereo | No |
| TWS | Yes |
| USB Playback | Yes |
| Weight | 2.5 lbs / 1.13 kg |
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
- Links
KEF Muo gen2: $249.99 Amazon
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
| App | Yes |
|---|---|
| Battery Life | 24 hours (Manufacturer specified) |
| Bluetooth Codecs | SBC, aptX Adaptive up to 48 KHz 24 bit |
| Bluetooth Version | 5.4 |
| Dimensions | 8.5" x 3.2" x 2.3" (216 x 82 x 59 mm) |
| Drivers | 1x 58x117mm racetrack woofer, 1x 20mm tweeter |
| Frequency Response | 43Hz - 20kHz (Manufacturer specified) |
| IP Rating | IP67 |
| Max Volume | 90dB |
| Output Power | 40W |
| Party Mode | Auracast |
| Stereo | Yes |
| TWS | Yes |
| USB Audio | Yes |
| Weight | 1.6 lbs / 740 g |
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
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- Links
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Product prices and availability were last checked August 9, 2026 at 6:57 AM UTC 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.