Short answer: the JBL Xtreme 5 for deep bass and dispersion, the Onyx Studio 4 for balanced sound. The Xtreme 5 has a removable battery and reaches well below 40Hz with excellent off-axis dispersion, though it is high priced with bass boost and a mid-upper bass hole no EQ can fix. The Onyx Studio 4 is balanced with deep, resonant bass and crisp treble, but manages only 8 hours at medium volume and does not go as deep as the newer Onyx.
Buy the JBL Xtreme 5. It is rated higher for sound quality; the Harman Kardon Onyx Studio 4 is no longer sold new.
Battery life favors the JBL Xtreme 5: rated for 28 hours against 8 hours for the Harman Kardon Onyx Studio 4.
There is a real gap in water resistance: the JBL Xtreme 5 at IP68 (extended submersion) against the Harman Kardon Onyx Studio 4, which has no water resistance.
Still deciding? The full Portable Bluetooth rankings cover every ranked option.
Specifications Side By Side
| JBL Xtreme 5 | Harman Kardon Onyx Studio 4 | |
|---|---|---|
| Price | $399.95 | $100 Discontinued |
| Ranked | #2 of 102 in Large Size Portable Bluetooth Speakers | #65 of 102 in Large Size Portable Bluetooth Speakers |
| App | Yes | Yes (HK Connect) |
| Aux Input | No | Yes |
| Battery Life | 28 hours (Manufacturer specified) | 8 hours (Manufacturer specified) |
| EQ | Yes (7 band) | No |
| IP Rating | IP68 | None |
| Maximum SPL | 110dB (measured by Alan Ross Reviews) | - |
| Party Mode | Yes (Auracast) | Yes (Connect+ up to 100 speakers) |
| Power Bank | Yes (USB-C, 5V/3A) | No |
| Power Input | USB-C | DC Barrel Connector (19V/2.1A) |
| Removable Battery | Yes | - |
| TWS | Yes | Yes |
| Weight | 6.4 lbs (2.9 kg) | 4.5 lbs (2.06 kg) |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | SBC, AAC, LC3 | SBC |
| Built-in Microphone | No | Yes |
| Stereo | Partially (1 woofer) | Yes |
| Omnidirectional | No | No |
| Bluetooth Version | 6.0 | 4.2 |
| Dimensions | 13.6” x 6.5” x 6.1” (346 x 165 x 155 mm) | 11.4” x 11.4” x 5.1” (290 x 290 x 130 mm) |
| Drivers | 98x145mm woofer, 2x 20mm tweeters + 2x passive radiators | 2x 75mm woofers + 2x 20mm tweeters + 1x passive radiator |
| Frequency Response | 40Hz - 20kHz (Manufacturer specified) | 50Hz - 20kHz (Manufacturer specified) |
| Amplifier Power | 1 x 90W RMS Woofer + 2 x 20W RMS Tweeter (AC power mode) 1 x 60W RMS Woofer + 2 x 15W RMS Tweeter (Battery mode) | 60W |
| Digital Aux Input | Yes (USB-C) | No |
| Strap | Yes (detachable shoulder strap) | No |
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More worthwhile head-to-heads for JBL Xtreme 5:
- JBL Xtreme 5 vs Vifa Helsinki
- JBL Xtreme 5 vs Tribit Stormbox Lava
- Brane X vs JBL Xtreme 5
- JBL Xtreme 5 vs Minirig 4 with subwoofer
- JBL Xtreme 5 vs Minirig 3 with subwoofer
Prices on this page were last checked October 4, 2026 at 9:58 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 5: $399.95 Amazon B&H Photo Video eBay
Older models: the JBL Xtreme 3 (ranked lower, rated 4.3/5), the JBL Xtreme 4 (ranked lower, rated 3.8/5), the JBL Xtreme 2 (ranked lower, rated 3.4/5) and the JBL Xtreme (ranked lower, rated 3.2/5).
Pros: Removable battery. Quite deep bass, reaching well below 40Hz. A fantastic sounding speaker with excellent off-axis dispersion, a big step up from older JBL portables. Beats the Soundcore Boom 2 and Tribit Stormbox Blast on bass depth and clarity. Plays clean at volume, unlike the JBL Boombox 4.
Cons: High priced. Some bass boost. A hole in the mid-upper bass which can’t be EQ’d out. Default EQ presets are weak (Signature is boring, Chill and Vocal are close to unusable): needs the custom EQ to sound its best. Bigger and heavier than the Xtreme 4.
Setup: Try this Oluv EQ for the most neutral sound
Full JBL Xtreme 5 review and specifications →
| Amplifier Power | 1 x 90W RMS Woofer + 2 x 20W RMS Tweeter (AC power mode) 1 x 60W RMS Woofer + 2 x 15W RMS Tweeter (Battery mode) |
|---|---|
| App | Yes |
| Aux Input | No |
| Battery Life | 28 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC, AAC, LC3 |
| Bluetooth Version | 6.0 |
| Built-in Microphone | No |
| Digital Aux Input | Yes (USB-C) |
| Dimensions | 13.6” x 6.5” x 6.1” (346 x 165 x 155 mm) |
| Drivers | 98x145mm woofer, 2x 20mm tweeters + 2x passive radiators |
| EQ | Yes (7 band) |
| Frequency Response | 40Hz - 20kHz (Manufacturer specified) |
| IP Rating | IP68 |
| Maximum SPL | 110dB (measured by Alan Ross Reviews) |
| Omnidirectional | No |
| Party Mode | Yes (Auracast) |
| Power Bank | Yes (USB-C, 5V/3A) |
| Power Input | USB-C |
| Removable Battery | Yes |
| Stereo | Partially (1 woofer) |
| Strap | Yes (detachable shoulder strap) |
| TWS | Yes |
| Weight | 6.4 lbs (2.9 kg) |
- Links
- Reviews, Comparisons and Sound Samples
- Joy & Oluv’Sone🔈3DAudio🎧& Music: JBL Xtreme 5 - universal EQ for best sound overall More from Oluv’Sone →
- Joy & Oluv’Sone🔈3DAudio🎧& Music: JBL Xtreme 5 - Best Bluetooth Speaker 2026 award
- Joy & Oluv’Sone🔈3DAudio🎧& Music: JBL Xtreme 5 vs Studio Monitors: too V-shaped or not to V-shaped, that’s the question!
- Joy & Oluv’Sone🔈3DAudio🎧& Music: JBL Xtreme 5 - outdoor test
- Joy & Oluv’Sone🔈3DAudio🎧& Music: Minirigs 4 with Sub 4 vs JBL Xtreme 5 - 1st impressions
- Oluv Patreon: VIFA Helsinki & JBL Xtreme 5 - listening test
- Oluv Patreon: JBL Xtreme 5 - 1st detailed impression with custom EQs
- Oluv Patreon: JBL Xtreme 5 - outdoor test
- Alan Ross Reviews: Brane X vs JBL Xtreme 5: Maximum Bass, No Mercy More from alanrossreviews →
- Alan Ross Reviews: JBL Xtreme 5 2026, massive upgrade over JBL Xtreme 4! Full tests!
- Alan Ross Reviews: JBL Xtreme 5 vs JBL Xtreme 4 in 2026
- Alan Ross Reviews: https://www.youtube.com/watch?v=K5ImoaGw3t0
- Alan Ross Reviews: JBL Xtreme 5 or the amazing Tribit Stormbox Blast? 🤔
- Storytripper HD: Marshall Kilburn III vs JBL Xtreme 5 (Verion Outdoor) More from storytripperhd →
- Head-to-Head Comparisons
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 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 W-King D8
- Harman Kardon Onyx Studio 4 vs Sony SRS-XB43
- Harman Kardon Onyx Studio 4 vs Klipsch Detroit
- See all 47 comparisons