Short answer: the Onyx Studio 8 for a warmer balance, the Tribit Stormbox Blast 2 for deeper bass. The Blast 2 has pretty deep bass but sounds quite muddy with the boosted lower and upper bass, plus boosted treble around 6kHz. The Onyx Studio 8 has warm sound with boosted bass, yet it is not as loud as others and has no water rating.
Buy the Tribit Stormbox Blast 2, since the Harman Kardon Onyx Studio 8 is discontinued and only worth hunting down used.
Battery life favors the Tribit Stormbox Blast 2: rated for 30 hours against 8 hours for the Harman Kardon Onyx Studio 8.
If water resistance matters to you, the Tribit Stormbox Blast 2 at IP67 (brief submersion) holds up far better than the Harman Kardon Onyx Studio 8 at no water resistance.
Still deciding? The full Portable Bluetooth rankings cover every ranked option.
Specifications Side By Side
| Harman Kardon Onyx Studio 8 | Tribit Stormbox Blast 2 | |
|---|---|---|
| Price | $199.00 Discontinued | $299.99 |
| Ranked | #12 of 90 in Boombox Size Portable Bluetooth Speakers | #31 of 90 in Boombox Size Portable Bluetooth Speakers |
| Aux Input | Yes | Yes |
| Aux Latency | 42ms | - |
| Bass Extension (-10dB) | 35Hz | 40Hz |
| Battery Life | 8 hours (Manufacturer specified) | 30 hours (Manufacturer specified) |
| Built-in Microphone | Yes | No |
| IP Rating | None | IP67 |
| Bluetooth Latency | 175ms | - |
| Maximum SPL | 96dB (measured by Alan Ross Reviews) | 110dB (measured by Alan Ross Reviews) |
| Power Input | DC Barrel Connector (19V/2.1A) | AC Power Cable or 10w USB-C |
| Stereo | Partially (1 woofer) | Yes |
| Omnidirectional | No | No |
| TWS | Yes | Yes |
| Weight | 7.3 lbs (3.3 kg) | 19.2 lbs (8.7 kg) |
| App | Yes (Harman Kardon One app) | Yes (Tribit app) |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | SBC | SBC, AAC |
| Power Bank | No | Yes (USB-A) |
| EQ | Yes (App EQ) | Yes (10 band) |
| Party Mode | No | No |
| USB Playback | No | No |
| Bluetooth Version | 5.2 | 5.4 |
| Amplifier Power | 50W RMS | 200W AC / 180W battery |
| Dimensions | 10.6” x 11.9” x 6.3” (268 x 302.5 x 159.5 mm) | 18.7” x 7.6” x 10.2” (476 x 193 x 259 mm) |
| Drivers | 120mm woofer + 2x 20mm tweeters | 1x ~180x110mm rectangular subwoofer + 2x ~80mm mid drivers + 2x ~25mm tweeters |
| Digital Aux Input | No | No |
| Strap | No | No |
| Microphone Input | - | Yes (2x 6.35mm) |
| FM Tuner | - | No |
| MicroSD Playback | - | No |
Related Speaker Comparisons
How Harman Kardon Onyx Studio 8 compares with other leading options:
- Tribit Stormbox Blast vs Harman Kardon Onyx Studio 8
- Harman Kardon Go + Play 3 vs Harman Kardon Onyx Studio 8
- JBL Partybox Encore 2 vs Harman Kardon Onyx Studio 8
- JBL PartyBox On-The-Go 2 Plus vs Harman Kardon Onyx Studio 8
- JBL Partybox Encore Essential 2 vs Harman Kardon Onyx Studio 8
Prices on this page were last checked October 3, 2026 at 10:26 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 8: $199.00 Discontinued Amazon eBay
Newer model: the Harman Kardon Onyx Studio 9, ranked lower, rated 4.1/5.
Pros: At 3.3 kg, Harman Kardon Onyx Studio 8 combines a 120mm woofer and 2x 20mm tweeters with Bluetooth and aux. Claimed 8 hours (manufacturer specified) battery life and up to 96db make its feature set practical for its intended room or portable use. A built-in microphone and the Harman Kardon One app with EQ. Measured bass extension of 35Hz (-10dB).
Cons: Bass is limited by its 35Hz specification. Warm tuning with boosted bass, not as loud as others, and no water resistance rating. Discontinued.
Full Harman Kardon Onyx Studio 8 review and specifications →
| Amplifier Power | 50W RMS |
|---|---|
| App | Yes (Harman Kardon One app) |
| Aux Input | Yes |
| Aux Latency | 42ms |
| Bass Extension (-10dB) | 35Hz |
| Battery Life | 8 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC |
| Bluetooth Latency | 175ms |
| Bluetooth Version | 5.2 |
| Built-in Microphone | Yes |
| Digital Aux Input | No |
| Dimensions | 10.6” x 11.9” x 6.3” (268 x 302.5 x 159.5 mm) |
| Drivers | 120mm woofer + 2x 20mm tweeters |
| EQ | Yes (App EQ) |
| IP Rating | None |
| Maximum SPL | 96dB (measured by Alan Ross Reviews) |
| Omnidirectional | No |
| Party Mode | No |
| Power Bank | No |
| Power Input | DC Barrel Connector (19V/2.1A) |
| Stereo | Partially (1 woofer) |
| Strap | No |
| TWS | Yes |
| USB Playback | No |
| Weight | 7.3 lbs (3.3 kg) |
- Links
- Reviews, Comparisons and Sound Samples
- Alan Ross Reviews: Harman Kardon Onyx Studio 8 review - part 2 of 3 More from alanrossreviews →
- Alan Ross Reviews: Onyx Studio 8 vs HK Onyx 6, Xtreme 3, PartyBox Encore, Go+ Play, Bag of Riddim! part 3 of 3
- Alan Ross Reviews: Dead room vs Live room - Onyx studio 8 self tuning test! part 1 of 3
- Alan Ross Reviews: Ultimate HK Onyx Studio speaker review and comparison! 8 speakers!
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Tribit Stormbox Blast 2: $299.99 Amazon eBay
Older model: the Tribit Stormbox Blast (ranked higher, rated 4.5/5).
Pros: Pretty deep bass. Measured bass extension of 40Hz (-10dB).
Cons: Sounds quite muddy with the boosted lower and upper bass. Boosted treble around 6kHz. Xbass mode makes it sound even more muddy. Nowhere near as neutral and balanced as the first Blast and a big downgrade unless you only care about max volume
Setup: Try the EQ from Alan Ross at this timestamp of his video
Full Tribit Stormbox Blast 2 review and specifications →
| Amplifier Power | 200W AC / 180W battery |
|---|---|
| App | Yes (Tribit app) |
| Aux Input | Yes |
| Bass Extension (-10dB) | 40Hz |
| Battery Life | 30 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC, AAC |
| Bluetooth Version | 5.4 |
| Built-in Microphone | No |
| Digital Aux Input | No |
| Dimensions | 18.7” x 7.6” x 10.2” (476 x 193 x 259 mm) |
| Drivers | 1x ~180x110mm rectangular subwoofer + 2x ~80mm mid drivers + 2x ~25mm tweeters |
| EQ | Yes (10 band) |
| FM Tuner | No |
| IP Rating | IP67 |
| Maximum SPL | 110dB (measured by Alan Ross Reviews) |
| MicroSD Playback | No |
| Microphone Input | Yes (2x 6.35mm) |
| Omnidirectional | No |
| Party Mode | No |
| Power Bank | Yes (USB-A) |
| Power Input | AC Power Cable or 10w USB-C |
| Stereo | Yes |
| Strap | No |
| TWS | Yes |
| USB Playback | No |
| Weight | 19.2 lbs (8.7 kg) |
- Links
- Reviews, Comparisons and Sound Samples
- Joy & Oluv’Sone: Tribit Stormbox Blast 2 - outdoor sound test More from Oluv’Sone →
- Joy & Oluv’Sone: Tribit Stormbox Blast 2 - indoor sound test
- Joy & Oluv’Sone: Tribit Stormbox Blast 2 vs 2 Earfun UBoom X - outdoor test
- Alan Ross Reviews: Tribit Stormbox Blast 2 custom EQ best settings! Alan Ross! More from alanrossreviews →
- Alan Ross Reviews: Tribit Stormbox Blast 2 firmware V11 update - earthquake warning!
- Alan Ross Reviews: Tribit Stormbox Blast 2 review - fun fun fun! sometimes 😊
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