Different classes, so treat this as a step-up-or-not question rather than a head-to-head. The Devialet Mania ranks #39 of 75 large speakers at $899; the Harman Kardon Onyx Studio 6 ranks #11 of 70 boombox speakers at $130.
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 at $899 if you want a large speaker. Buy the Harman Kardon Onyx Studio 6 at $130 if you want a boombox speaker instead.
Specifications Side By Side
| Devialet Mania | Harman Kardon Onyx Studio 6 | |
|---|---|---|
| Price | $899.00 | $130 |
| Ranked | #39 of 75 in Large Size Portable Bluetooth Speakers | #11 of 70 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 |
| Wifi | Yes | - |
| App | No | No |
| Aux Input | Yes | Yes |
| Bluetooth Codecs | SBC | SBC |
| Built in Microphone | Yes | Yes |
| EQ | No | No |
| Party Mode | No | (Dual Sound up to 2 speakers) |
| Power Bank | No | No |
| Power Input | USB-C | 19V/2A |
| Stereo | Yes | Yes |
| 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) | 5.04" x 11.46" x 11.18" (128 x 291 x 284 mm) |
| Drivers | 4x aluminum fullrange drivers, 2x woofers | 2x 75mm woofers + 2x 20mm tweeters |
| Frequency Response | 30Hz - 20kHz (Manufacturer specified) | - |
| Output Power | 176W | 50W RMS |
| Max Volume | 95dB | 96dB |
| Bluetooth Latency | - | 180ms |
| USB Playback | - | No |
The Two Speakers In Full
Devialet Mania: $899.00 Amazon
Pros: Small, nice looking.
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)
| 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 |
| 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 |
| Max Volume | 95dB |
| Output Power | 176W |
| Party Mode | No |
| Power Bank | No |
| Power Input | USB-C |
| Stereo | Yes |
| TWS | Yes |
| Weight | 5.1 lbs / 2.3 kg |
| Wifi | Yes |
- 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
- Links
Harman Kardon Onyx Studio 6: $130 Amazon
Pros: Warm sound with boosted bass. Oluv liked it slightly better than the newer Onyx 7.
Cons: 8 hour battery at medium volume. Not at loud as others.
| 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 |
| Dimensions | 5.04" x 11.46" x 11.18" (128 x 291 x 284 mm) |
| Drivers | 2x 75mm woofers + 2x 20mm tweeters |
| EQ | No |
| IP Rating | IPX7 |
| Max Volume | 96dB |
| Output Power | 50W RMS |
| Party Mode | (Dual Sound up to 2 speakers) |
| Power Bank | No |
| Power Input | 19V/2A |
| Stereo | Yes |
| 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 |
- Reviews, Comparisons and Sound Samples
- Alan Ross Reviews: Onyx Studio 7 vs Onyx Studio 6 - massive deep bass battle 😁
- 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!
- Head-to-Head Comparisons
- 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.