These sit in different size classes, so this is not a straight ranking comparison. The Harman Kardon Aura Studio 5 ranks #21 of 28 powered desktop speakers by sound quality at $295.99; the Harman Kardon Onyx Studio 9 ranks #15 of 98 boombox speakers by sound quality at $189.99.
What the Harman Kardon Aura Studio 5 does well: Proper 3-way design with a 143mm subwoofer, six midrange drivers and a dedicated tweeter, rated to 45Hz at -6dB, so it fills a room evenly with real low end. The catch: Mains powered home speaker with no battery, no aux input and no Wi-Fi streaming in this version.
Why pick the Harman Kardon Onyx Studio 9: An elegant 9.3 lbs (4.2 kg) living-room portable with a measured 41Hz -10dB bass point, 101dB maximum level, three tweeters, app EQ, stereo pairing and Auracast multi-speaker linking. It plays in stereo from a single unit, unlike the Harman Kardon Aura Studio 5. The catch: It has no water resistance, aux input or USB playback, and its eight-hour claimed battery life is short for an outdoor portable.
Buy the Harman Kardon Aura Studio 5 at $295.99 for a powered desktop speaker, or the Harman Kardon Onyx Studio 9 at $189.99 for a boombox speaker instead.
About the ratings: the Harman Kardon Aura Studio 5’s rating is estimated from measured siblings and predecessors rather than its own measurements, with a likely range of 3.1 to 3.8, so this verdict could change once it is measured.
Still deciding? The full Powered Home rankings and Portable Bluetooth rankings cover every ranked option.
Specifications Side By Side
| Harman Kardon Aura Studio 5 | Harman Kardon Onyx Studio 9 | |
|---|---|---|
| Price | $295.99 each | $189.99 |
| Ranked | #21 of 28 in Medium Size Powered Desktop Speakers Estimated | #15 of 98 in Boombox Size Portable Bluetooth Speakers |
| Drivers | 143mm subwoofer + 6x 40mm mid/high drivers + 25mm tweeter (3-way, 360 degree) | 120mm woofer + 3x 20mm tweeters |
| Amplifier Power | 160W RMS (100W sub + 3x 20W) | 50W RMS |
| Bluetooth | Yes | Yes |
| Bluetooth Version | 5.4 | 5.3 |
| Bluetooth Codecs | SBC | SBC |
| Weight | 9.3 lbs (4.2 kg) | 9.3 lbs (4.2 kg) |
| Dimensions | 9.2” x 12.1” x 9.2” (234 x 306.4 x 234 mm) | 11.4” x 11.3” x 5.1” (289.2 x 287.5 x 130 mm) |
| Frequency Response | 45Hz - 20kHz (-6dB) | - |
| App | Yes (Harman Kardon One) | Yes (Harman Kardon One app) |
| EQ | Yes (app EQ) | Yes (App EQ) |
| TWS | Yes | Yes |
| Party Mode | Yes (Auracast) | Yes (Auracast) |
| Lights | Yes (ambient and projection lighting) | - |
| Stereo | No | Yes |
| USB Playback | Yes (US version, MP3) | No |
| Aux Input | No | No |
| Built-in Microphone | No | - |
| Power Input | AC mains | AC Power Cable (2-Prong) |
| Bass Extension (-10dB) | - | 41Hz |
| Maximum SPL | - | 101dB (measured by Alan Ross Reviews) |
| IP Rating | - | None |
| Omnidirectional | - | No |
| Battery Life | - | 8 hours (Manufacturer specified) |
| Digital Aux Input | - | No |
| Strap | - | No |
Related Speaker Comparisons
More worthwhile head-to-heads for Harman Kardon Onyx Studio 9:
- EarFun Uboom X vs Harman Kardon Onyx Studio 9
- Harman Kardon Onyx Studio 9 vs Tribit Stormbox Blast
- Harman Kardon Go + Play 3 vs Harman Kardon Onyx Studio 9
- JBL Partybox Encore 2 vs Harman Kardon Onyx Studio 9
- JBL PartyBox On-The-Go 2 Plus vs Harman Kardon Onyx Studio 9
Prices on this page were last checked October 11, 2026 at 4:59 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.
As an eBay Partner, we may be compensated if you make a purchase.
The Two Speakers In Full
Harman Kardon Aura Studio 5: $295.99 each Estimated Amazon $295.99 eBay
Pros: Proper 3-way design with a 143mm subwoofer, six midrange drivers and a dedicated tweeter, rated to 45Hz at -6dB, so it fills a room evenly with real low end. Striking transparent dome with music synced and projected lighting, Bluetooth 5.4, Auracast multi speaker linking, stereo pairing and app EQ.
Cons: Mains powered home speaker with no battery, no aux input and no Wi-Fi streaming in this version. The 360 degree layout and bass forward tuning favor ambience over precise imaging. Expensive for a Bluetooth only speaker at $296, and there is no independent measurement yet.
Full Harman Kardon Aura Studio 5 review and specifications →
| Released | Nov 2025 (11 months ago) |
|---|---|
| Amplifier Power | 160W RMS (100W sub + 3x 20W) |
| App | Yes (Harman Kardon One) |
| Aux Input | No |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC |
| Bluetooth Version | 5.4 |
| Built-in Microphone | No |
| Dimensions | 9.2” x 12.1” x 9.2” (234 x 306.4 x 234 mm) |
| Drivers | 143mm subwoofer + 6x 40mm mid/high drivers + 25mm tweeter (3-way, 360 degree) |
| EQ | Yes (app EQ) |
| Frequency Response | 45Hz - 20kHz (-6dB) |
| Lights | Yes (ambient and projection lighting) |
| Party Mode | Yes (Auracast) |
| Power Input | AC mains |
| Stereo | No |
| TWS | Yes |
| USB Playback | Yes (US version, MP3) |
| Weight | 9.3 lbs (4.2 kg) |
- Links
- Reviews, Comparisons and Sound Samples
- OCM Reviews: Harman Kardon Aura Studio 5 - Premium Sound Premium Price? - All you need to know
- OCM Reviews: Harman Kardon Aura Studio 5 vs Aura Studio 4 | App Control Game Changer.
- NoHypeTech: Harman Kardon Aura Studio 5 vs Aura Studio 4: Worth the Upgrade?
- DIY GUIDES: Harman Kardon Aura Studio 5 Review + Sound Test | Does the Bass Match Its Design?
- Compariffy : HARMAN KARDON AURA STUDIO 5 VS ONYX STUDIO 9 | COMPARISON
- Head-to-Head Comparisons
Harman Kardon Onyx Studio 9: $189.99 Amazon $189.99 eBay
Older models: the Harman Kardon Onyx Studio 8 (ranked higher, rated 4.1/5), the Harman Kardon Onyx Studio 7 (ranked higher, rated 4.1/5), the Harman Kardon Onyx Studio 6 (ranked higher, rated 4.1/5), the Harman Kardon Onyx Studio 5 (ranked lower, rated 3.9/5) and the Harman Kardon Onyx Studio 4 (rated 3.3/5). See every Harman Kardon Onyx Studio generation.
Pros: An elegant 4.2kg living-room portable with a measured 41Hz -10dB bass point, 101dB maximum level, three tweeters, app EQ, stereo pairing and Auracast multi-speaker linking. Reviews praise its balanced, smooth presentation and non-fatiguing treble, making it a more music-focused choice than most party speakers. Measured bass extension of 41Hz (-10dB).
Cons: It has no water resistance, aux input or USB playback, and its eight-hour claimed battery life is short for an outdoor portable. Bass is less deep than some earlier Onyx Studio models, while the slightly recessed mids and rolled-off top end mean it is not the most open or detailed option; it still charges from an AC power cable rather than USB-C.
Full Harman Kardon Onyx Studio 9 review and specifications →
| Released | Dec 2024 (1 year ago) |
|---|---|
| Amplifier Power | 50W RMS |
| App | Yes (Harman Kardon One app) |
| Aux Input | No |
| Bass Extension (-10dB) | 41Hz |
| Battery Life | 8 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC |
| Bluetooth Version | 5.3 |
| Digital Aux Input | No |
| Dimensions | 11.4” x 11.3” x 5.1” (289.2 x 287.5 x 130 mm) |
| Drivers | 120mm woofer + 3x 20mm tweeters |
| EQ | Yes (App EQ) |
| IP Rating | None |
| Maximum SPL | 101dB (measured by Alan Ross Reviews) |
| Omnidirectional | No |
| Party Mode | Yes (Auracast) |
| Power Input | AC Power Cable (2-Prong) |
| Stereo | Yes |
| Strap | No |
| TWS | Yes |
| USB Playback | No |
| Weight | 9.3 lbs (4.2 kg) |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
- Harman Kardon Onyx Studio 9 vs Harman Kardon Onyx Studio 7
- Harman Kardon Onyx Studio 9 vs Zealot ZE51
- Harman Kardon Onyx Studio 9 vs Zealot ZE41
- Harman Kardon Onyx Studio 9 vs Harman Kardon Onyx Studio 6
- Harman Kardon Onyx Studio 9 vs Zealot ZE21
- Harman Kardon Onyx Studio 9 vs Harman Kardon Onyx Studio 8
- Harman Kardon Onyx Studio 9 vs Zealot S89
- Harman Kardon Onyx Studio 9 vs Yeahbox Sonic Boom Ultra
- See all 99 comparisons