Short answer: the JBL Xtreme 5. It ranks #2 of 82 large speakers by sound quality, rated 4.6/5, at $399.95. The Turtlebox Cub ranks #60, rated 3.0/5, at $330, $69.95 cheaper, not enough of a saving to outweigh the sound-quality gap.
The Xtreme 5 is the proven speaker. It reaches well below 40Hz with excellent off-axis dispersion, plays clean at volume and measured about 110dB. The Cub has only listening impressions so far: loud for its size, warm and bass-forward, with some bass loss at high volume.
Toughness: the Xtreme 5 is IP68 with a removable battery. The Cub is IP67, crush and drop resistant, with stainless steel tie-downs.
Battery and features: a claimed 28 hours for the Xtreme 5 against 14+ for the Cub. The Xtreme 5 has a 7-band app EQ, Auracast and partial stereo from two tweeters. The Cub is mono with Party Mode and stereo pairing. Both have a USB-C power bank.
Size: 2.9 kg for the Xtreme 5, 2.4 kg for the Cub.
Buy the JBL Xtreme 5. It is rated higher for sound quality, and the $69.95 saving on the Turtlebox Cub is not enough to make up the difference.
Want more options? Browse the full Portable Bluetooth rankings.
Specifications Side By Side
| JBL Xtreme 5 | Turtlebox Cub | |
|---|---|---|
| Price | $399.95 | $330.00 |
| Ranked | #2 of 82 in Large Size Portable Bluetooth Speakers | #60 of 82 in Large Size Portable Bluetooth Speakers |
| App | Yes | - |
| Aux Input | No | - |
| Battery Life | 28 hours (Manufacturer specified) | 14+ hours (Manufacturer specified) |
| EQ | Yes (7 band) | - |
| IP Rating | IP68 | IP67 |
| Maximum SPL | 110dB (measured by Alan Ross Reviews) | - |
| Party Mode | Yes (Auracast) | Yes (Party Mode) |
| Power Bank | Yes (USB-C, 5V/3A) | Yes (USB-C) |
| Power Input | USB-C | USB-C |
| Removable Battery | Yes | - |
| TWS | Yes | Yes |
| Weight | 6.4 lbs (2.9 kg) | 5.3 lbs (2.4 kg) |
| Bluetooth Codecs | SBC, AAC, LC3 | - |
| Built-in Microphone | No | - |
| Stereo | Partially (1 woofer) | No |
| Omnidirectional | No | No |
| Bluetooth Version | 6.0 | - |
| Dimensions | 13.6” x 6.5” x 6.1” (346 x 165 x 155 mm) | 8.6”H x 7.2”W x 5.7”D (218 x 183 x 146 mm) |
| Drivers | 98x145mm woofer, 2x 20mm tweeters + 2x passive radiators | 1x 4.5” (114mm) woofer + 1x 1.3” (33mm) titanium tweeter |
| Frequency Response | 40Hz - 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) | - |
| Digital Aux Input | Yes (USB-C) | - |
| Strap | Yes (detachable shoulder strap) | - |
Related Speaker Comparisons
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 September 26, 2026 at 11:14 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 (rated 4.3/5), the JBL Xtreme 4 (rated 3.8/5), the JBL Xtreme 2 (rated 3.4/5) and the JBL Xtreme (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 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? 🤔
- Head-to-Head Comparisons
Turtlebox Cub: $330.00 Amazon eBay
Pros: A compact, cube-shaped Turtlebox at 2.4 kg with a real two-way layout: a 4.5 inch woofer and a 1.3 inch titanium tweeter. Reviewers found it very loud for its size, with warm, bass-forward tuning and a bit more bass than the Turtlebox Ranger. IP67 waterproof and dustproof, crush and drop resistant, stainless steel tie-downs, a claimed 14+ hours from a 49.95Wh battery, USB-C charging with a power bank output, stereo pairing and Party Mode.
Cons: The evidence so far is listening impressions from two reviews, with no measurements or side by side tests against other brands. One reviewer found it loses bass at high volume, and it is not as loud as the full-size Turtlebox. Turtlebox’s claimed 118dB is a figure the brand’s larger speakers have not come close to at a standard one meter distance. It is also mono from one unit, and its recessed USB-C port only fits slim cable plugs.
Full Turtlebox Cub review and specifications →
| Battery Life | 14+ hours (Manufacturer specified) |
|---|---|
| Dimensions | 8.6”H x 7.2”W x 5.7”D (218 x 183 x 146 mm) |
| Drivers | 1x 4.5” (114mm) woofer + 1x 1.3” (33mm) titanium tweeter |
| IP Rating | IP67 |
| Omnidirectional | No |
| Party Mode | Yes (Party Mode) |
| Power Bank | Yes (USB-C) |
| Power Input | USB-C |
| Stereo | No |
| TWS | Yes |
| Weight | 5.3 lbs (2.4 kg) |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
- Turtlebox Cub vs Marshall Stockwell III
- Turtlebox Cub vs Sony ULT Field 5
- Turtlebox Cub vs JBL Xtreme 4
- Turtlebox Cub vs Marshall Middleton
- Turtlebox Cub vs Bose SoundLink Plus
- Turtlebox Cub vs Teufel Rockster Cross 2
- Turtlebox Cub vs Bose SoundLink Max
- Turtlebox Cub vs Soundcore Boom 2
- See all 13 comparisons