Short answer: the Tronsmart Halo 100, if you are buying new. The Harman Kardon Onyx Studio 4 ranks higher than it (#52 vs #56 of 85 large speakers, 3.3/5 vs 3.2/5) but is discontinued, so only consider it used; the Tronsmart Halo 100 is still sold new at $109.99.
Why pick the Harman Kardon Onyx Studio 4: Balanced sound quality with deep resonant bass and crisp treble, large dynamic range. The tradeoff: 8 hour battery at medium volume.
The case for the Tronsmart Halo 100: 60W power with excellent bass (tested 100dB), IPX6 waterproof design, RGB LED party lights, 18 hours battery without lights, 6000mAh capacity with USB-A charging port for devices, good value outdoor party speaker. The catch: Not a very smooth frequency response.
Buy the Tronsmart Halo 100, since the Harman Kardon Onyx Studio 4 is discontinued and only worth hunting down used.
If water resistance matters to you, the Tronsmart Halo 100 at IPX7 (brief submersion) holds up far better than the Harman Kardon Onyx Studio 4 at no water resistance.
Still deciding? The full Portable Bluetooth rankings cover every ranked option.
Specifications Side By Side
| Harman Kardon Onyx Studio 4 | Tronsmart Halo 100 | |
|---|---|---|
| Price | $100 Discontinued | $109.99 |
| Ranked | #52 of 85 in Large Size Portable Bluetooth Speakers | #56 of 85 in Large Size Portable Bluetooth Speakers |
| App | Yes (HK Connect) | No |
| Aux Input | Yes | Yes |
| Battery Life | 8 hours (Manufacturer specified) | 18 hours (Manufacturer specified) |
| EQ | No | No |
| IP Rating | None | IPX7 |
| Party Mode | Yes (Connect+ up to 100 speakers) | No |
| Power Bank | No | Yes (USB-A) |
| TWS | Yes | Yes |
| Weight | 4.5 lbs (2.06 kg) | 6 lbs (2.72 kg) |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | SBC | SBC |
| Built-in Microphone | Yes | Yes |
| Power Input | DC Barrel Connector (19V/2.1A) | USB-C |
| Stereo | Yes | Yes |
| Omnidirectional | No | No |
| Bluetooth Version | 4.2 | 5.3 |
| Drivers | 2x 75mm woofers + 2x 20mm tweeters + 1x passive radiator | 1x 115mm woofer, 2x 53mm mid-tweeters, 1x 31mm tweeter |
| Dimensions | 11.4” x 11.4” x 5.1” (290 x 290 x 130 mm) | 11.3” x 7” x 5.9” (286 x 179 x 150 mm) |
| Frequency Response | 50Hz - 20kHz (Manufacturer specified) | 40Hz - 20kHz (Manufacturer specified) |
| Amplifier Power | 60W | 60W |
| Digital Aux Input | No | No |
| Strap | No | - |
| Bass Extension (-10dB) | - | 49Hz |
| Maximum SPL | - | 104dB (measured by Alan Ross Reviews) |
| MicroSD Playback | - | Yes |
| Lights | - | Yes |
Related Speaker Comparisons
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- Marshall Stockwell II vs Harman Kardon Onyx Studio 4
- Harman Kardon Citation 200 vs Harman Kardon Onyx Studio 4
Prices on this page were last checked September 29, 2026 at 3:43 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 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 Zealot S97
- Harman Kardon Onyx Studio 4 vs JBL Xtreme 2
- Harman Kardon Onyx Studio 4 vs W-King D8
- Harman Kardon Onyx Studio 4 vs Sony SRS-XB43
- Harman Kardon Onyx Studio 4 vs JBL Xtreme
- Harman Kardon Onyx Studio 4 vs Doss Soundbox XL
- Harman Kardon Onyx Studio 4 vs Sony ULT Field 5
- Harman Kardon Onyx Studio 4 vs Klipsch Detroit
- See all 38 comparisons
Tronsmart Halo 100: $109.99 Tronsmart eBay
Pros: 60W power with excellent bass (tested 100dB), IPX6 waterproof design, RGB LED party lights, 18 hours battery without lights, 6000mAh capacity with USB-A charging port for devices, good value outdoor party speaker. Measured bass extension of 49Hz (-10dB).
Cons: Not a very smooth frequency response. Treble is peaky. Boosted upper bass.
Full Tronsmart Halo 100 review and specifications →
| Amplifier Power | 60W |
|---|---|
| App | No |
| Aux Input | Yes |
| Bass Extension (-10dB) | 49Hz |
| Battery Life | 18 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC |
| Bluetooth Version | 5.3 |
| Built-in Microphone | Yes |
| Digital Aux Input | No |
| Dimensions | 11.3” x 7” x 5.9” (286 x 179 x 150 mm) |
| Drivers | 1x 115mm woofer, 2x 53mm mid-tweeters, 1x 31mm tweeter |
| EQ | No |
| Frequency Response | 40Hz - 20kHz (Manufacturer specified) |
| IP Rating | IPX7 |
| Lights | Yes |
| Maximum SPL | 104dB (measured by Alan Ross Reviews) |
| MicroSD Playback | Yes |
| Omnidirectional | No |
| Party Mode | No |
| Power Bank | Yes (USB-A) |
| Power Input | USB-C |
| Stereo | Yes |
| TWS | Yes |
| Weight | 6 lbs (2.72 kg) |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
- Tronsmart Halo 100 vs Klipsch Detroit
- Tronsmart Halo 100 vs Marshall Stockwell III
- Tronsmart Halo 100 vs Tronsmart Force Max
- Tronsmart Halo 100 vs W-King D8
- Tronsmart Halo 100 vs Sony ULT Field 5
- Tronsmart Halo 100 vs Tronsmart Bang 2
- Tronsmart Halo 100 vs Fugoo XL
- Tronsmart Halo 100 vs W-King T9
- See all 16 comparisons