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 case for the Devialet Mania: Small, nice looking. Set against that: Not very loud.
What the Harman Kardon Onyx Studio 6 gets right: Warm sound with boosted bass. Set against that: 8 hour battery at medium volume.
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.
Specifications Side By Side
| Devialet Mania | Harman Kardon Onyx Studio 6 | |
|---|---|---|
| Price | $899.00 | $130 |
| Ranked | #40 of 78 in Large Size Portable Bluetooth Speakers | #12 of 75 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 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 |
| Bluetooth Latency | - | 180ms |
| USB Playback | - | No |
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- Harman Kardon Go + Play 3 vs Harman Kardon Onyx Studio 6
- JBL Partybox Encore 2 vs Harman Kardon Onyx Studio 6
- JBL Partybox Encore Essential 2 vs Harman Kardon Onyx Studio 6
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Prices on this page were last checked September 22, 2026 at 5:11 AM 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
Devialet Mania: $899.00 Amazon eBay
Pros: Small, nice looking. Measured bass extension of 47Hz (-10dB).
Cons: Not very loud. Extremely high price. Bass boosted. Tweeters are not aimed at you and there’s a huge treble rolloff off-axis as compared to the Beoplay P6 in the comparison video. Only 10 hours of battery. Oluv didn’t like the upper mids or treble (mentioned on his Patreon)
Full Devialet Mania review and specifications →
| Amplifier Power | 176W |
|---|---|
| App | No |
| Aux Input | Yes |
| Bass Extension (-10dB) | 47Hz |
| Battery Life | 10 hours (Manufacturer specified) |
| Bluetooth Codecs | SBC |
| Bluetooth Version | 5.0 |
| Built-in Microphone | Yes |
| Digital Aux Input | No |
| Dimensions | 6.9" x 7.6" x 5.5" (176 x 193 x 139 mm) |
| Drivers | 4x aluminum fullrange drivers, 2x woofers |
| EQ | No |
| Frequency Response | 30Hz - 20kHz (Manufacturer specified) |
| IP Rating | IPX4 |
| Maximum SPL | 95dB (Manufacturer specified) |
| Omnidirectional | No |
| Party Mode | No |
| Power Bank | No |
| Power Input | USB-C |
| Stereo | Yes |
| TWS | Yes |
| Voice Assistants | Amazon Alexa |
| Weight | 5.1 lbs (2.3 kg) |
| Wi-Fi | Yes |
- Links
- Reviews, Comparisons and Sound Samples
- That Speaker Guy: Devialet Mania vs Bang & Olufsen Beoplay P6 - Headphones On
- That Speaker Guy: Harman Kardon Onyx Studio 6 vs Devialet Mania
- HT Sound: Devialet Mania VS JBL Xtreme 2 - 60% Vol (Listen with headphones)
- BitsBytesBobs: Devialet Mania Music Audio Test Results
- Oluv Patreon: Visit at the Devialet store in Vienna More from Oluv’Sone →
- Head-to-Head Comparisons
Harman Kardon Onyx Studio 6: $130 Amazon eBay
Pros: Harman Kardon Onyx Studio 6 uses a 120mm woofer, 25mm tweeter and passive radiator. Its 2.94 kg, claimed 8 hours (Manufacturer specified) battery life, IPX7 protection, aux input and up to 96dB make it a practical option for its intended room or portable use. Measured bass extension of 37Hz (-10dB).
Cons: Bass is limited by its 37Hz specification. There is no companion app. No EQ adjustment.
Full Harman Kardon Onyx Studio 6 review and specifications →
| Amplifier Power | 50W RMS |
|---|---|
| App | No |
| Aux Input | Yes |
| Bass Extension (-10dB) | 37Hz |
| Battery Life | 8 hours (Manufacturer specified) |
| Bluetooth Codecs | SBC |
| Bluetooth Latency | 180ms |
| Bluetooth Version | 4.2 |
| Built-in Microphone | Yes |
| Digital Aux Input | No |
| Dimensions | 5" x 11.5" x 11.2" (128 x 291 x 284 mm) |
| Drivers | 1x 120mm (4.7") woofer + 1x 25mm (1") tweeter + 1x passive radiator |
| EQ | No |
| IP Rating | IPX7 |
| Maximum SPL | 96dB (measured by Alan Ross Reviews) |
| Omnidirectional | No |
| Party Mode | Yes (Wireless Dual Sound) |
| Power Bank | No |
| Power Input | DC Barrel Connector (19V/2A) |
| Stereo | No |
| TWS | Yes (see https://www.reddit.com/r/Bluetooth_Speakers/comments/w339x5/how_to_harman_kardon_onyx_studio_5_6_dual_sound/) |
| USB Playback | No |
| Weight | 6.5 lbs (2.94 kg) |
- Links
- Reviews, Comparisons and Sound Samples
- Alan Ross Reviews: Onyx Studio 7 vs Onyx Studio 6 - massive deep bass battle 😁 More from alanrossreviews →
- That Speaker Guy: Harman Kardon Onyx Studio 6 vs Devialet Mania
- Ezekielo: Citation 200 vs Onyx Studio 6 vs Bose Portable Speaker Sound Comparison
- Alan Ross Reviews: Harman Kardon Go+ Play 2 mini or Onyx Studio 6 - best speaker for bass?
- Alan Ross Reviews: Ultimate HK Onyx Studio speaker review and comparison! 8 speakers!
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