Short answer: the Harman Kardon Onyx Studio 6, which delivers warm, bass-boosted sound for far less. It runs 8 hours at medium volume and costs $130 against $899 for the Devialet Mania. The Mania is small and nice looking, but our notes say it is not very loud. The Harman Kardon Onyx Studio 6 is discontinued; its replacement is the Harman Kardon Onyx Studio 9.
Buy the Devialet Mania ($899) for a large speaker; the Harman Kardon Onyx Studio 6 ($130) suits a boombox speaker instead.
If water resistance matters to you, the Harman Kardon Onyx Studio 6 at IPX7 (brief submersion) holds up far better than the Devialet Mania at IPX4 (splashing).
Still deciding? The full Portable Bluetooth rankings cover every ranked option.
A compact, good looking Wi-Fi and Bluetooth stereo speaker with Alexa built in and splash resistance.
A waterproof carry speaker with warm sound, deep bass for its size, and pairing with a second unit.
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
| Devialet Mania | Harman Kardon Onyx Studio 6 | |
|---|---|---|
| Price | $899.00 | $130 Discontinued |
| Ranked | #55 of 120 in Large Size Portable Bluetooth Speakers | #13 of 113 in Boombox Size Portable Bluetooth Speakers |
| Bass Extension (-10dB) | 47Hz | 37Hz |
| Battery Life | 10 hours (Manufacturer specified) | 8 hours (Manufacturer specified) |
| IP Rating | IPX4 | IPX7 |
| Weight | 5.1 lbs (2.3 kg) | 6.5 lbs (2.94 kg) |
| Wi-Fi | Yes | - |
| App | No | No |
| Aux Input | Yes | Yes |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | SBC | SBC |
| Built-in Microphone | Yes | Yes |
| Voice Assistants | Amazon Alexa | - |
| EQ | No | No |
| Party Mode | No | Yes (Wireless Dual Sound) |
| Power Bank | No | No |
| Power Input | USB-C | DC Barrel Connector (19V/2A) |
| Stereo | Yes | No |
| Omnidirectional | No | No |
| TWS | Yes | Yes (see https://www.reddit.com/r/Bluetooth_Speakers/comments/w339x5/how_to_harman_kardon_onyx_studio_5_6_dual_sound/) |
| Bluetooth Version | 5.0 | 4.2 |
| Dimensions | 6.9” x 7.6” x 5.5” (176 x 193 x 139 mm) | 5” x 11.5” x 11.2” (128 x 291 x 284 mm) |
| Drivers | 4x aluminum fullrange drivers, 2x woofers | 1x 120mm (4.7”) woofer + 1x 25mm (1”) tweeter + 1x passive radiator |
| Frequency Response | 30Hz - 20kHz (Manufacturer specified) | - |
| Amplifier Power | 176W | 50W RMS |
| Maximum SPL | 95dB (Manufacturer specified) | 96dB (measured by Alan Ross Reviews) |
| Digital Aux Input | No | No |
| Strap | No | No |
| Bluetooth Latency | - | 180ms |
| USB Playback | - | No |
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