Short answer: the Harman Kardon Onyx Studio 4. It ranks #52 of 85 large speakers by sound quality, rated 3.3/5, at $100. The Soundcore Rave Neo ranks #72, rated 2.7/5, at $80, $20 cheaper, not enough of a saving to outweigh the sound-quality gap.
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 Soundcore Rave Neo: 50W powerful bass-heavy sound with clear mids and highs. Watch for: Muddy with treble rolloff.
Worth knowing: the Harman Kardon Onyx Studio 4 has been discontinued and is hard to find new at this point.
Buy the Harman Kardon Onyx Studio 4. It is rated higher for sound quality, and the $20 saving on the Soundcore Rave Neo is not enough to make up the difference.
There is a real battery-life gap here: the Soundcore Rave Neo is rated for 18 hours, the Harman Kardon Onyx Studio 4 only 8 hours.
Water resistance is not close: the Soundcore Rave Neo is rated at IPX7 (brief submersion), well ahead of 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 | Soundcore Rave Neo | |
|---|---|---|
| Price | $100 Discontinued | $80 Discontinued |
| Ranked | #52 of 85 in Large Size Portable Bluetooth Speakers | #72 of 85 in Large Size Portable Bluetooth Speakers |
| App | Yes (HK Connect) | Yes |
| Aux Input | Yes | Yes |
| Battery Life | 8 hours (Manufacturer specified) | 18 hours (Manufacturer specified) |
| EQ | No | Yes |
| IP Rating | None | IPX7 |
| Party Mode | Yes (Connect+ up to 100 speakers) | Yes (PartyCast up to 100 speakers) |
| Power Bank | No | Yes (USB-A, 5V/2A) |
| TWS | Yes | Yes |
| Weight | 4.5 lbs (2.06 kg) | 7.7 lbs (3.49 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 | 5.0 |
| Drivers | 2x 75mm woofers + 2x 20mm tweeters + 1x passive radiator | 1x 102mm woofer, 1x 51mm fullrange |
| Dimensions | 11.4” x 11.4” x 5.1” (290 x 290 x 130 mm) | 11” x 6” x 7” (279.4 x 152.4 x 177.8 mm) |
| Frequency Response | 50Hz - 20kHz (Manufacturer specified) | - |
| Amplifier Power | 60W | 50W |
| Digital Aux Input | No | No |
| Strap | No | No |
| Bass Extension (-10dB) | - | 60Hz |
| Maximum SPL | - | 106dB (measured by Alan Ross Reviews) |
| Lights | - | Yes |
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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
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Soundcore Rave Neo: $80 Discontinued Soundcore eBay
Newer model: the Soundcore Rave Neo 2, ranked higher, rated 4.2/5.
Pros: 50W powerful bass-heavy sound with clear mids and highs. IPX7 waterproof design with float capability. 18-hour battery life at moderate volumes. Beat-driven RGB lights, carry handle, USB-C charging, PowerIQ port charges devices, can link 100+ speakers via PartyCast. Measured bass extension of 60Hz (-10dB).
Cons: Muddy with treble rolloff. Discontinued.
Full Soundcore Rave Neo review and specifications →
| Amplifier Power | 50W |
|---|---|
| App | Yes |
| Aux Input | Yes |
| Bass Extension (-10dB) | 60Hz |
| Battery Life | 18 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC |
| Bluetooth Version | 5.0 |
| Built-in Microphone | Yes |
| Digital Aux Input | No |
| Dimensions | 11” x 6” x 7” (279.4 x 152.4 x 177.8 mm) |
| Drivers | 1x 102mm woofer, 1x 51mm fullrange |
| EQ | Yes |
| IP Rating | IPX7 |
| Lights | Yes |
| Maximum SPL | 106dB (measured by Alan Ross Reviews) |
| Omnidirectional | No |
| Party Mode | Yes (PartyCast up to 100 speakers) |
| Power Bank | Yes (USB-A, 5V/2A) |
| Power Input | USB-C |
| Stereo | Yes |
| Strap | No |
| TWS | Yes |
| Weight | 7.7 lbs (3.49 kg) |
- Reviews, Comparisons and Sound Samples
- Alan Ross Reviews: Soundcore Motion Boom Plus or Soundcore Rave Neo (Trance Go) - best Soundcore speaker?? More from alanrossreviews →
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