Short answer: the Harman Kardon Onyx Studio 9. It ranks #15 of 89 boombox speakers by sound quality, rated 4.1/5, at $189.99. The Havit BassBlast Go ranks #47, rated 3.4/5, at $77.99, $112 cheaper, not enough of a saving to outweigh the sound-quality gap.
The case for the Harman Kardon Onyx Studio 9: 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. The tradeoff: It has no water resistance, aux input or USB playback, and its eight-hour claimed battery life is short for an outdoor portable.
What the Havit BassBlast Go does well: Jagist found it a strong value for a medium size boombox, with a lot of bass for its size and a good balance on the Rock EQ. The catch: In the only side by side against a rated speaker, listeners preferred the W-King H330, and Techder Audios found the Tribit Stormbox Lava clearly better in sound and build.
Buy the Harman Kardon Onyx Studio 9. It is rated higher for sound quality, and saving $112 with the Havit BassBlast Go does not make up for the sound-quality gap.
Water resistance is not close: the Havit BassBlast Go is rated at IPX6 (powerful water jets), well ahead of the Harman Kardon Onyx Studio 9 at no water resistance.
Looking for alternatives? See the complete Portable Bluetooth rankings.
Specifications Side By Side
| Harman Kardon Onyx Studio 9 | Havit BassBlast Go | |
|---|---|---|
| Price | $189.99 | $77.99 |
| Ranked | #15 of 89 in Boombox Size Portable Bluetooth Speakers | #47 of 89 in Boombox Size Portable Bluetooth Speakers |
| Bass Extension (-10dB) | 41Hz | - |
| Maximum SPL | 101dB (measured by Alan Ross Reviews) | - |
| IP Rating | None | IPX6 |
| Power Input | AC Power Cable (2-Prong) | USB-C |
| Stereo | Yes | Yes |
| Omnidirectional | No | No |
| TWS | Yes | Yes |
| Weight | 9.3 lbs (4.2 kg) | 8.6 lbs (3.9 kg) |
| App | Yes (Harman Kardon One app) | Yes (Havit Life) |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | SBC | - |
| EQ | Yes (App EQ) | Yes (8 presets) |
| Party Mode | Yes (Auracast) | - |
| USB Playback | No | Yes |
| Bluetooth Version | 5.3 | 5.3 |
| Battery Life | 8 hours (Manufacturer specified) | 12 hours (Manufacturer specified) |
| Amplifier Power | 50W RMS | 120W peak (2x 50W woofers, 2x 10W tweeters) |
| Dimensions | 11.4” x 11.3” x 5.1” (289.2 x 287.5 x 130 mm) | 8.7”H x 15.2”W x 5.9”D (222 x 385 x 150 mm) |
| Drivers | 120mm woofer + 3x 20mm tweeters | 2x 76mm (3”) woofers + 2x 38mm (1.5”) tweeters + passive radiators |
| Digital Aux Input | No | - |
| Aux Input | No | Yes |
| Strap | No | - |
| Battery Capacity | - | 44Wh (7.4V, 6000mAh) |
| Charging Time | - | 3.5 hours |
| Frequency Response | - | 20Hz - 20kHz (Manufacturer specified) |
| Lights | - | Yes |
| Microphone Input | - | Yes (6.35mm) |
| Power Bank | - | Yes |
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 September 30, 2026 at 2:57 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
Harman Kardon Onyx Studio 9: $189.99 Amazon 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).
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 →
| 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
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Havit BassBlast Go: $77.99 Amazon eBay
Pros: Jagist found it a strong value for a medium size boombox, with a lot of bass for its size and a good balance on the Rock EQ. Two woofers and two tweeters give true stereo from one unit, and it adds IPX6 water resistance, Bluetooth 5.3, the Havit Life app with 8 EQ presets, a 6.35mm microphone input with echo control, aux and USB playback, a small status screen, RGB lights, stereo pairing and a power bank output.
Cons: In the only side by side against a rated speaker, listeners preferred the W-King H330, and Techder Audios found the Tribit Stormbox Lava clearly better in sound and build. Vocals are weaker than rivals’, and owners report the battery drains far faster than its 12 hour rating. The evidence is thin: one comparison and a handful of listening reviews.
Full Havit BassBlast Go review and specifications →
| Amplifier Power | 120W peak (2x 50W woofers, 2x 10W tweeters) |
|---|---|
| App | Yes (Havit Life) |
| Aux Input | Yes |
| Battery Capacity | 44Wh (7.4V, 6000mAh) |
| Battery Life | 12 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Version | 5.3 |
| Charging Time | 3.5 hours |
| Dimensions | 8.7”H x 15.2”W x 5.9”D (222 x 385 x 150 mm) |
| Drivers | 2x 76mm (3”) woofers + 2x 38mm (1.5”) tweeters + passive radiators |
| EQ | Yes (8 presets) |
| Frequency Response | 20Hz - 20kHz (Manufacturer specified) |
| IP Rating | IPX6 |
| Lights | Yes |
| Microphone Input | Yes (6.35mm) |
| Omnidirectional | No |
| Power Bank | Yes |
| Power Input | USB-C |
| Stereo | Yes |
| TWS | Yes |
| USB Playback | Yes |
| Weight | 8.6 lbs (3.9 kg) |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
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