Short answer: the JBL Xtreme 3. It ranks #18 of 105 large speakers by sound quality (rated 4.3/5) at $269.95 and is still sold new; the Harman Kardon Onyx Studio 4 ranks #67 (rated 3.3/5) and is discontinued, so it is only an option used. The Harman Kardon Onyx Studio 4’s replacement, the Harman Kardon Onyx Studio 9, is still sold new.
The JBL Xtreme 3 is the better-sounding, longer-running choice. Better treble and deeper bass than the JBL Xtreme 2. It is rated for 15 hours of battery against 8 for the Harman Kardon Onyx Studio 4. It is rated IPX7, while the Harman Kardon Onyx Studio 4 has no water resistance. The catch: Boosted bass.
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.
Buy the JBL Xtreme 3. It is rated higher for sound quality; the Harman Kardon Onyx Studio 4 is no longer sold new.
Want more options? Browse the full Portable Bluetooth rankings.
Specifications Side By Side
| JBL Xtreme 3 | Harman Kardon Onyx Studio 4 | |
|---|---|---|
| Price | $269.95 | $100 Discontinued |
| Ranked | #18 of 105 in Large Size Portable Bluetooth Speakers | #67 of 105 in Large Size Portable Bluetooth Speakers |
| Aux Input | Yes | Yes |
| Bass Extension (-10dB) | 53Hz | - |
| Battery Life | 15 hours (Manufacturer specified) | 8 hours (Manufacturer specified) |
| Bluetooth Latency | 133ms | - |
| Maximum SPL | 105dB (measured by Alan Ross Reviews) | - |
| Party Mode | Yes (PartyBoost up to 100 speakers) | Yes (Connect+ up to 100 speakers) |
| Power Bank | Yes (USB-A + USB-C) | No |
| Power Input | USB-C | DC Barrel Connector (19V/2.1A) |
| Stereo | Yes | Yes |
| Omnidirectional | No | No |
| TWS | Yes | Yes |
| Weight | 4 lbs (1.83 kg) | 4.5 lbs (2.06 kg) |
| App | No | Yes (HK Connect) |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | SBC | SBC |
| Built-in Microphone | Yes | Yes |
| EQ | No | No |
| IP Rating | IPX7 | None |
| Bluetooth Version | 4.1 | 4.2 |
| Dimensions | 11.7” x 5.4” x 5.3” (298 x 136 x 134 mm) | 11.4” x 11.4” x 5.1” (290 x 290 x 130 mm) |
| Drivers | 2x 70mm woofers, 2x 20mm tweeters | 2x 75mm woofers + 2x 20mm tweeters + 1x passive radiator |
| Frequency Response | 53.5Hz - 20kHz (Manufacturer specified) | 50Hz - 20kHz (Manufacturer specified) |
| Amplifier Power | 100W | 60W |
| Digital Aux Input | No | No |
| Strap | Yes (detachable shoulder strap) | No |
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Prices on this page were last checked October 12, 2026 at 4:13 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
JBL Xtreme 3: $269.95 Amazon $269.95 eBay
Newer model: the JBL Xtreme 5, ranked higher, rated 4.6/5, released Apr 2026.
Older models: the JBL Xtreme 2 (ranked lower, rated 3.4/5) and the JBL Xtreme (ranked lower, rated 3.2/5). See every JBL Xtreme generation.
Pros: Better treble and deeper bass than the JBL Xtreme 2. More balanced sounding than the JBL Xtreme 4. Measured bass extension of 53Hz (-10dB).
Cons: Boosted bass. Not as deep bass as better speakers. Not as balanced as better speakers.
Full JBL Xtreme 3 review and specifications →
| Released | Oct 2020 (6 years ago) |
|---|---|
| Amplifier Power | 100W |
| App | No |
| Aux Input | Yes |
| Bass Extension (-10dB) | 53Hz |
| Battery Life | 15 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC |
| Bluetooth Latency | 133ms |
| Bluetooth Version | 4.1 |
| Built-in Microphone | Yes |
| Digital Aux Input | No |
| Dimensions | 11.7” x 5.4” x 5.3” (298 x 136 x 134 mm) |
| Drivers | 2x 70mm woofers, 2x 20mm tweeters |
| EQ | No |
| Frequency Response | 53.5Hz - 20kHz (Manufacturer specified) |
| IP Rating | IPX7 |
| Maximum SPL | 105dB (measured by Alan Ross Reviews) |
| Omnidirectional | No |
| Party Mode | Yes (PartyBoost up to 100 speakers) |
| Power Bank | Yes (USB-A + USB-C) |
| Power Input | USB-C |
| Stereo | Yes |
| Strap | Yes (detachable shoulder strap) |
| TWS | Yes |
| Weight | 4 lbs (1.83 kg) |
- Links
- Reviews, Comparisons and Sound Samples
- Alan Ross Reviews: JBL Xtreme 3 vs Sony XB43 - boombox champ? More from alanrossreviews →
- Alan Ross Reviews: JBL Xtreme 3 vs JBL Xtreme 2 and Xtreme 1 - review and sound test
- Alan Ross Reviews: Anker Soundcore Motion Boom Plus vs JBL Xtreme 3 - Extreme review!
- Alan Ross Reviews: Tronsmart Halo 100 bluetooth party speaker - their best yet!
- 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: JBL Xtreme 3 vs Soundcore Motion Boom vs Rave Neo - Boombox Battle!
- Alan Ross Reviews: Soundcore Motion Boom vs JBL Xtreme 3 LG PN7 & Minirig mk3 💯👍
- Alan Ross Reviews: W-King X10 vs JBL Xtreme 3, Xtreme 2 and Xtreme 1! Xtreme Review 🤓
- Dominik Reviews: JBL Xtreme 4 vs JBL Xtreme 3 Sound Test 😍 Best upgrade in the history? 😂 More from Dominik Reviews →
- Mateusz Cholewa: TRIBIT StormBox LAVA - Unboxing.📦 Short Test vs Xtreme 4 More from Mateusz Cholewa →
- DLX Willington: Who Sounds The Best Of Sony XG300, XB43 & JBL XTREME3 With Sound Sample BLIND CHALLENGE Reveal. More from DLXWillington →
- Jay’s Straight Up Reviews & More: Ortizan M8🦨 Bluetooth Speaker. Is This The Budget JBL Xtreme 3 Killer? Better Than Zealot S67? More from JaysStraightUpReviews →
- Smart Home Sounds: Best Premium Bluetooth Speakers: Sonos Move, JBL Xtreme 3, Marshall Middleton & More… More from Smart Home Sounds →
- Danny Pops: It’s shaped like a Football - JBL Xtreme 3 Review vs Marshall Tufton and Flips Party Mode More from DannyPops →
- KULAS TECH SHOW: Harman Kardon Citation 200 vs JBL Xtreme3 Sound & Bass test More from KULASTECHSHOW20 →
- GYMCADDY: JBL Xtreme 3 Vs Sony XG300 - Its Not Even Close More from GYMCADDY →
- New Stuff TV: Sony SRS-XG300 Vs JBL Xtreme 3 More from NewStuffTV1 →
- Audio Inside Scoop: Klipsch Detroit VS JBL Xtreme 3 Hear With Me!!
- NozeeD StudiO: JBL Xtreme 3 vs Tronsmart Force Max Comparison
- Head-to-Head Comparisons
- JBL Xtreme 3 vs Soundcore Motion X600
- JBL Xtreme 3 vs Bose SoundLink Max
- JBL Xtreme 3 vs B&O Beoplay A2 active
- JBL Xtreme 3 vs Loewe We. Hear Pro
- JBL Xtreme 3 vs Soundcore Rave Neo 2
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- JBL Xtreme 3 vs Soundcore Motion Boom
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- See all 91 comparisons
Harman Kardon Onyx Studio 4: $100 Discontinued eBay
Newer model: the Harman Kardon Onyx Studio 9, rated 4.1/5, released Dec 2024. See every Harman Kardon Onyx Studio generation.
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 →
| Released | Aug 2017 (9 years ago) |
|---|---|
| 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 Tronsmart Halo 100
- Harman Kardon Onyx Studio 4 vs Zealot S97
- Harman Kardon Onyx Studio 4 vs JBL Xtreme
- Harman Kardon Onyx Studio 4 vs JBL Xtreme 2
- Harman Kardon Onyx Studio 4 vs DOSS Soundbox XL
- Harman Kardon Onyx Studio 4 vs Klipsch Detroit
- Harman Kardon Onyx Studio 4 vs Sony SRS-XG300
- Harman Kardon Onyx Studio 4 vs W-King D8
- See all 47 comparisons