Short answer: the JBL Boombox 4, if you are buying new, though neither ranks well in its class. The JBL Boombox ranks higher than the Turtlebox Gen 3 (#62 vs #85 of 91 boombox speakers) but is discontinued; its replacement, the JBL Boombox 4, is rated 4.0/5 at $549.95 and is still sold new. Both are rated below 3.0/5 among the 91 boombox speakers, and the Tribit Stormbox Blast, ranked #2 at $199.99, is a better place to start if sound quality matters.
The Turtlebox Gen 3 is the tougher pick. Waterproof (IP67, and it floats) and crushproof, with stainless steel hardware and quality amplifier parts inside. It is rated IP67 against IPX5 for the JBL Boombox. It has a microphone input for karaoke or announcements, which the JBL Boombox lacks. The catch: Sounds basically identical to the original and the Turtlebox Gen 2: each generation mainly added features, not sound quality.
The JBL Boombox is the better-sounding pick. Claimed 24 hours (manufacturer specified) battery life, ipx5 protection and stereo playback make its feature set practical for its intended room or portable use. The catch: Treble is not very smooth.
Buy the JBL Boombox 4, the replacement for the discontinued JBL Boombox; it is rated higher for sound quality than the Turtlebox Gen 3.
Looking for alternatives? See the complete Portable Bluetooth rankings.
Specifications Side By Side
| Turtlebox Gen 3 | JBL Boombox | |
|---|---|---|
| Price | $430.00 | $399 Discontinued |
| Ranked | #85 of 91 in Boombox Size Portable Bluetooth Speakers | #62 of 91 in Boombox Size Portable Bluetooth Speakers |
| Aux Input | Yes | Yes |
| Bass Extension (-10dB) | ~65Hz | - |
| Battery Life | 25 hours (Manufacturer specified) | 24 hours (Manufacturer specified) |
| IP Rating | IP67 | IPX5 |
| MicroSD Playback | Yes | No |
| Stereo | Yes | Yes |
| Omnidirectional | No | No |
| Weight | 10 lbs (4.54 kg) | 11.5 lbs (5.2 kg) |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | SBC | SBC |
| App | No | No |
| EQ | No | No |
| TWS | Yes | Yes |
| Party Mode | Yes (Turtlebox Party Mode) | Yes (Connect+ up to 100 speakers) |
| Power Bank | Yes (USB-C) | Yes (USB-A) |
| USB Playback | No | No |
| Built-in Microphone | No | No |
| Power Input | DC Barrel Connector (15V/3A) | USB-C |
| Bluetooth Version | 5.4 | 4.2 |
| Amplifier Power | 50W | 60W AC / 40W battery |
| Dimensions | 12” x 7” x 8.7” (305 x 178 x 222 mm) | 10” x 18.1” x 7.7” (254.5 x 458.5 x 195.5 mm) |
| Drivers | 1x 6x9” (152x228mm) woofer + 1x 1” (25mm) tweeter | 2x 65mm woofers + 2x 20mm tweeters with passive radiators |
| Digital Aux Input | No | No |
| Strap | No | - |
| Microphone Input | Yes (3.5mm) | No |
| Battery Capacity | 85Wh | - |
| Maximum SPL | 102dB (measured by Williston Audio Labs) | - |
| FM Tuner | - | No |
Related Speaker Comparisons
More top alternatives to JBL Boombox:
- Tribit Stormbox Blast vs JBL Boombox
- Harman Kardon Go + Play 3 vs JBL Boombox
- JBL Partybox Encore 2 vs JBL Boombox
- JBL PartyBox On-The-Go 2 Plus vs JBL Boombox
- JBL Partybox Encore Essential 2 vs JBL Boombox
Prices on this page were last checked October 9, 2026 at 8:01 AM 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
Turtlebox Gen 3: $430.00 Amazon eBay
Older models: the Turtlebox Gen 2 (ranked lower, rated 2.1/5) and the Turtlebox (ranked lower, rated 2.1/5). See every Turtlebox generation.
Same family: the Turtlebox Cub (smaller model, rated 3/5), the Turtlebox Ranger (smaller model, rated 3.5/5) and the Turtlebox Grande (larger model, ranked higher, rated 2.6/5).
Pros: Waterproof (IP67, and it floats) and crushproof, with stainless steel hardware and quality amplifier parts inside. Loud for its class: Williston Audio Labs measured 102 dB at max volume, well above a Kicker Bullfrog BF400’s 96 dB. A big 85Wh battery rated for 25+ hours, a USB-C output that charges other devices, aux and microphone inputs, and true multi-speaker Party Mode on top of stereo pairing, plus Bluetooth 5.4. Measured bass extension of ~65Hz (-10dB).
Cons: Sounds basically identical to the original and the Turtlebox Gen 2: each generation mainly added features, not sound quality. The amp is tuned to a V shape, with boosted lows and highs and a dip in the mids, but the boost can’t make up for shallow extension: the bass is only down 10dB at about 65Hz, so there’s little real low end despite the boomy upper bass. The amp delivers only about 12W RMS at 1% distortion. In Williston Audio Labs’ side by side test most listeners preferred the much smaller Kicker Bullfrog BF400 for its cleaner sound, and a Pioneer PBM5 played louder at 105 dB. Nowhere near its claimed 120dB at a reasonable measuring distance. Rattles at high volume. It charges only from its own 15V barrel plug brick, not USB-C, and has no app or EQ. Inside is essentially a car audio 6x9 two way speaker in a plastic box.
Full Turtlebox Gen 3 review and specifications →
| Released | Feb 2025 (1 year ago) |
|---|---|
| Amplifier Power | 50W |
| App | No |
| Aux Input | Yes |
| Bass Extension (-10dB) | ~65Hz |
| Battery Capacity | 85Wh |
| Battery Life | 25 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC |
| Bluetooth Version | 5.4 |
| Built-in Microphone | No |
| Digital Aux Input | No |
| Dimensions | 12” x 7” x 8.7” (305 x 178 x 222 mm) |
| Drivers | 1x 6x9” (152x228mm) woofer + 1x 1” (25mm) tweeter |
| EQ | No |
| IP Rating | IP67 |
| Maximum SPL | 102dB (measured by Williston Audio Labs) |
| MicroSD Playback | Yes |
| Microphone Input | Yes (3.5mm) |
| Omnidirectional | No |
| Party Mode | Yes (Turtlebox Party Mode) |
| Power Bank | Yes (USB-C) |
| Power Input | DC Barrel Connector (15V/3A) |
| Stereo | Yes |
| Strap | No |
| TWS | Yes |
| USB Playback | No |
| Weight | 10 lbs (4.54 kg) |
- Links
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JBL Boombox: $399 Discontinued eBay
Newer model: the JBL Boombox 4, ranked higher, rated 4/5, released Jul 2025. See every JBL Boombox generation.
Pros: At 5.2 kg, JBL Boombox combines 2x 65mm woofers + 2x 20mm tweeters with passive radiators with Bluetooth and aux. Claimed 24 hours (manufacturer specified) battery life, ipx5 protection and stereo playback make its feature set practical for its intended room or portable use. JBL Connect+ links up to 100 compatible speakers.
Cons: There is no companion app. No EQ adjustment. Treble is not very smooth. Discontinued.
Full JBL Boombox review and specifications →
| Released | Sep 2017 (9 years ago) |
|---|---|
| Amplifier Power | 60W AC / 40W battery |
| App | No |
| Aux Input | Yes |
| Battery Life | 24 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC |
| Bluetooth Version | 4.2 |
| Built-in Microphone | No |
| Digital Aux Input | No |
| Dimensions | 10” x 18.1” x 7.7” (254.5 x 458.5 x 195.5 mm) |
| Drivers | 2x 65mm woofers + 2x 20mm tweeters with passive radiators |
| EQ | No |
| FM Tuner | No |
| IP Rating | IPX5 |
| MicroSD Playback | No |
| Microphone Input | No |
| Omnidirectional | No |
| Party Mode | Yes (Connect+ up to 100 speakers) |
| Power Bank | Yes (USB-A) |
| Power Input | USB-C |
| Stereo | Yes |
| TWS | Yes |
| USB Playback | No |
| Weight | 11.5 lbs (5.2 kg) |
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