Short answer: the Devialet Mania. It ranks #52 of 102 large speakers by sound quality (rated 3.6/5) at $899 and is still sold new; the Harman Kardon Onyx Studio 4 ranks #65 (rated 3.3/5) and is discontinued, so it is only an option used.
The Devialet Mania is the better-sounding, tougher choice. Small, nice looking. It is rated IPX4, while the Harman Kardon Onyx Studio 4 has no water resistance. The tradeoff: Not very loud.
What the Harman Kardon Onyx Studio 4 does well: Balanced sound quality with deep resonant bass and crisp treble, large dynamic range. It links with other speakers (Connect+ up to 100 speakers), which the Devialet Mania cannot. Watch for: 8 hour battery at medium volume.
Buy the Devialet Mania. It is rated higher for sound quality; the Harman Kardon Onyx Studio 4 is no longer sold new.
Looking for alternatives? See the complete Portable Bluetooth rankings.
Specifications Side By Side
| Devialet Mania | Harman Kardon Onyx Studio 4 | |
|---|---|---|
| Price | $899.00 | $100 Discontinued |
| Ranked | #52 of 102 in Large Size Portable Bluetooth Speakers | #65 of 102 in Large Size Portable Bluetooth Speakers |
| Bass Extension (-10dB) | 47Hz | - |
| Battery Life | 10 hours (Manufacturer specified) | 8 hours (Manufacturer specified) |
| IP Rating | IPX4 | None |
| Weight | 5.1 lbs (2.3 kg) | 4.5 lbs (2.06 kg) |
| Wi-Fi | Yes | - |
| App | No | Yes (HK Connect) |
| 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 (Connect+ up to 100 speakers) |
| Power Bank | No | No |
| Power Input | USB-C | DC Barrel Connector (19V/2.1A) |
| Stereo | Yes | Yes |
| Omnidirectional | No | No |
| TWS | Yes | Yes |
| Bluetooth Version | 5.0 | 4.2 |
| Dimensions | 6.9” x 7.6” x 5.5” (176 x 193 x 139 mm) | 11.4” x 11.4” x 5.1” (290 x 290 x 130 mm) |
| Drivers | 4x aluminum fullrange drivers, 2x woofers | 2x 75mm woofers + 2x 20mm tweeters + 1x passive radiator |
| Frequency Response | 30Hz - 20kHz (Manufacturer specified) | 50Hz - 20kHz (Manufacturer specified) |
| Amplifier Power | 176W | 60W |
| Maximum SPL | 95dB (Manufacturer specified) | - |
| Digital Aux Input | No | No |
| Strap | No | No |
Related Speaker Comparisons
How Devialet Mania compares with other leading options:
- Devialet Mania vs Vifa Helsinki
- JBL Xtreme 5 vs Devialet Mania
- Tribit Stormbox Lava vs Devialet Mania
- Devialet Mania vs Brane X
- Devialet Mania vs Minirig 4 with subwoofer
Prices on this page were last checked October 4, 2026 at 9:58 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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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 | Yes |
| 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 |
| Strap | No |
| 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 4: $100 Discontinued eBay
Newer model: the Harman Kardon Onyx Studio 9, rated 4.1/5.
Pros: Balanced sound quality with deep resonant bass and crisp treble, large dynamic range. Multi-host Bluetooth connectivity for 2 phones, daisy chaining up to 100 speakers. Elegant modern design with smooth curves and premium materials.
Cons: 8 hour battery at medium volume. Not at loud as others. Not as deep of bass as the newer Onyx. External AC power brick for charging. Discontinued.
Full Harman Kardon Onyx Studio 4 review and specifications →
| Amplifier Power | 60W |
|---|---|
| App | Yes (HK Connect) |
| Aux Input | Yes |
| Battery Life | 8 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC |
| Bluetooth Version | 4.2 |
| Built-in Microphone | Yes |
| Digital Aux Input | No |
| Dimensions | 11.4” x 11.4” x 5.1” (290 x 290 x 130 mm) |
| Drivers | 2x 75mm woofers + 2x 20mm tweeters + 1x passive radiator |
| EQ | No |
| Frequency Response | 50Hz - 20kHz (Manufacturer specified) |
| IP Rating | None |
| Omnidirectional | No |
| Party Mode | Yes (Connect+ up to 100 speakers) |
| Power Bank | No |
| Power Input | DC Barrel Connector (19V/2.1A) |
| Stereo | Yes |
| Strap | No |
| TWS | Yes |
| Weight | 4.5 lbs (2.06 kg) |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
- Harman Kardon Onyx Studio 4 vs Tronsmart Halo 100
- Harman Kardon Onyx Studio 4 vs Zealot S97
- Harman Kardon Onyx Studio 4 vs JBL Xtreme
- Harman Kardon Onyx Studio 4 vs JBL Xtreme 2
- Harman Kardon Onyx Studio 4 vs Doss Soundbox XL
- Harman Kardon Onyx Studio 4 vs W-King D8
- Harman Kardon Onyx Studio 4 vs Sony SRS-XB43
- Harman Kardon Onyx Studio 4 vs Klipsch Detroit
- See all 47 comparisons