Short answer: the JBL Boombox 3. It ranks #27 of 91 boombox speakers by sound quality, rated 3.8/5, at $349.95; the Turtlebox Grande ranks #71, rated 2.6/5, and costs $730, which makes this an easy call rather than a real tradeoff.
What the Turtlebox Grande does well: 10-inch woofer. The tradeoff: In YouTube sound samples it sounds only okay, and bass is shallow for a 10 inch woofer, only down 10dB at about 55Hz.
The JBL Boombox 3 is the better-sounding, deeper-bass pick. 24 hour battery life (6.5 hour charge time). Its bass reaches about 43Hz before falling 10dB, against 55Hz for the Turtlebox Grande. At 14.8 lbs (6.7 kg) it weighs noticeably less than the Turtlebox Grande at 18.8 lbs (8.53 kg). The catch: Dips in mid bass range which makes the bass sound undefined, bass boosted, peaky at 700Hz, not quite as good mids and treble as the Blast.
Buy the JBL Boombox 3. It is rated higher for sound quality than the Turtlebox Grande and costs less, which makes it the one to get unless you need something the other one does better.
Looking for alternatives? See the complete Portable Bluetooth rankings.
Specifications Side By Side
| Turtlebox Grande | JBL Boombox 3 | |
|---|---|---|
| Price | $730.00 | $349.95 |
| Ranked | #71 of 91 in Boombox Size Portable Bluetooth Speakers | #27 of 91 in Boombox Size Portable Bluetooth Speakers |
| Aux Input | Yes | Yes |
| Bass Extension (-10dB) | ~55Hz | 43Hz |
| Battery Life | 25 hours (Manufacturer specified) | 24 hours (Manufacturer specified) |
| Built-in Microphone | Yes | No |
| IP Rating | IP67 | IP67 |
| MicroSD Playback | Yes | No |
| Party Mode | Yes (Turtlebox Party Mode) | Yes (PartyBoost up to 100 speakers) |
| Power Input | DC Barrel Connector (20V/3A) | AC Power cable |
| Stereo | Yes | Yes |
| Omnidirectional | No | No |
| TWS | Yes | Yes |
| Weight | 18.8 lbs (8.53 kg) | 14.8 lbs (6.7 kg) |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | SBC | SBC |
| App | No | No |
| EQ | No | No |
| Power Bank | Yes (USB-C) | Yes (USB-A) |
| USB Playback | No | No |
| Bluetooth Version | 5.4 | 5.3 |
| Amplifier Power | 86W | 180W AC / 136W battery |
| Dimensions | 14” x 8.4” x 11.5” (355.6 x 213.4 x 292.1 mm) | 19” x 10.1” x 7.9” (482 x 257 x 200 mm) |
| Drivers | 1x 10” (254mm) woofer + 1x 1.25” (32mm) titanium tweeter | 1x 189mm subwoofer + 2x 81mm woofers + 2x 20mm tweeters |
| Digital Aux Input | No | No |
| Strap | No | No |
| Aux Latency | - | 25ms |
| Bluetooth Latency | - | 100ms |
| Maximum SPL | - | 110dB (measured by Alan Ross Reviews) |
| FM Tuner | - | No |
| Microphone Input | - | No |
Related Speaker Comparisons
More worthwhile head-to-heads for JBL Boombox 3:
- EarFun Uboom X vs JBL Boombox 3
- JBL Boombox 3 vs Tribit Stormbox Blast
- Harman Kardon Go + Play 3 vs JBL Boombox 3
- JBL Partybox Encore 2 vs JBL Boombox 3
- JBL PartyBox On-The-Go 2 Plus vs JBL Boombox 3
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 Grande: $730.00 Amazon eBay
Same family: the Turtlebox Cub (smaller model, rated 3/5), the Turtlebox Ranger (smaller model, rated 3.5/5) and the Turtlebox Gen 3 (smaller model, ranked lower, rated 2.1/5). See every Turtlebox generation.
Pros: 10-inch woofer. IP67 submersible shell with crush-proof ABS exterior. 158Wh battery provides ~3 days of playback. Bluetooth 5.4, party mode (100+ speakers). Measured bass extension of ~55Hz (-10dB).
Cons: In YouTube sound samples it sounds only okay, and bass is shallow for a 10 inch woofer, only down 10dB at about 55Hz. It is rated at just 86W, and like the smaller Turtleboxes it won’t reach its claimed 126dB at a standard one meter distance. Expensive for what it delivers. It charges only from its own barrel plug adapter, not USB-C.
Full Turtlebox Grande review and specifications →
| Released | Jan 2025 (1 year ago) |
|---|---|
| Amplifier Power | 86W |
| App | No |
| Aux Input | Yes |
| Bass Extension (-10dB) | ~55Hz |
| Battery Life | 25 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC |
| Bluetooth Version | 5.4 |
| Built-in Microphone | Yes |
| Digital Aux Input | No |
| Dimensions | 14” x 8.4” x 11.5” (355.6 x 213.4 x 292.1 mm) |
| Drivers | 1x 10” (254mm) woofer + 1x 1.25” (32mm) titanium tweeter |
| EQ | No |
| IP Rating | IP67 |
| MicroSD Playback | Yes |
| Omnidirectional | No |
| Party Mode | Yes (Turtlebox Party Mode) |
| Power Bank | Yes (USB-C) |
| Power Input | DC Barrel Connector (20V/3A) |
| Stereo | Yes |
| Strap | No |
| TWS | Yes |
| USB Playback | No |
| Weight | 18.8 lbs (8.53 kg) |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
- Turtlebox Grande vs W-King D10
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JBL Boombox 3: $349.95 Amazon eBay
Newer model: the JBL Boombox 4, ranked higher, rated 4/5, released Jul 2025. It adds USB audio input, app control, adjustable EQ and AAC, but drops the aux input. Water resistance goes from IP67 to IP68.
Older models: the JBL Boombox 2 (ranked lower, rated 3.5/5) and the JBL Boombox (ranked lower, rated 2.9/5). See every JBL Boombox generation.
Same family: the JBL Boombox 3 Wifi (larger model, ranked higher, rated 3.8/5).
Pros: IP67 rated. 24 hour battery life (6.5 hour charge time). Doubles as a power bank. PartyBoost links up to 100 compatible JBL speakers. Three-way speaker system with subwoofer. Measured bass extension of 43Hz (-10dB).
Cons: Dips in mid bass range which makes the bass sound undefined, bass boosted, peaky at 700Hz, not quite as good mids and treble as the Blast.
Full JBL Boombox 3 review and specifications →
| Released | Aug 2022 (4 years ago) |
|---|---|
| Amplifier Power | 180W AC / 136W battery |
| App | No |
| Aux Input | Yes |
| Aux Latency | 25ms |
| Bass Extension (-10dB) | 43Hz |
| Battery Life | 24 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC |
| Bluetooth Latency | 100ms |
| Bluetooth Version | 5.3 |
| Built-in Microphone | No |
| Digital Aux Input | No |
| Dimensions | 19” x 10.1” x 7.9” (482 x 257 x 200 mm) |
| Drivers | 1x 189mm subwoofer + 2x 81mm woofers + 2x 20mm tweeters |
| EQ | No |
| FM Tuner | No |
| IP Rating | IP67 |
| Maximum SPL | 110dB (measured by Alan Ross Reviews) |
| MicroSD Playback | No |
| Microphone Input | No |
| Omnidirectional | No |
| Party Mode | Yes (PartyBoost up to 100 speakers) |
| Power Bank | Yes (USB-A) |
| Power Input | AC Power cable |
| Stereo | Yes |
| Strap | No |
| TWS | Yes |
| USB Playback | No |
| Weight | 14.8 lbs (6.7 kg) |
- Links
- Reviews, Comparisons and Sound Samples
- Oluv Patreon: Earfun UBoom X vs JBL Boombox 3 - outdoor test More from Oluv’Sone →
- Alan Ross Reviews: JBL Boombox 3 review vs JBL Boombox 2 a subwoofer and a 3 way equals heaven? 💋 More from alanrossreviews →
- Alan Ross Reviews: W King T11 party boombox and Karaoke machine review vs T9, Stormbox Blast and Boombox 3.
- Dominik Reviews: JBL Boombox 3 vs 2x Tribit Stormbox Blast 🤑 Huge difference? More from Dominik Reviews →
- Alan Ross Reviews: Not quite! JBL Authentics 300 review and sound test vs Boombox 3, Encore and Stormbox Blast
- Alan Ross Reviews: WiFi Edition: JBL Boombox 3 ultimate review! vs Boombox 3 Bluetooth edition
- Oluv Patreon: Earfun UBoom X vs JBL Boombox 3 - outdoor
- Jay’s Straight Up Reviews & More: Zealot ZE21 vs JBL Boombox 3 Tailgater Special @20ft. The Budget Beast Against the OG Boombox More from JaysStraightUpReviews →
- Jay’s Straight Up Reviews & More: Tribit Stormbox Blast 2 vs JBL Boombox 3 🔊 Got Bass? Let’s See How They Compare 😲 Battery Powered 🔋
- Picky Audio: SO CLOSE! Soundcore Boom 2 Plus vs JBL Boombox 3 More from pickyaudio →
- Picky Audio: Extended Sound Test (Soundcore Boom 2 Plus vs JBL Boombox 3)
- Alan Ross Reviews: W-King X20 JBL Boombox 3 killer! this should be illegal! - I was shocked!
- Jay’s Straight Up Reviews & More: New! W-King X20 vs JBL Boombox 3 🛜 Head to Head 🔋Battery Powered 📊Custom EQ - Links In Description
- Alan Ross Reviews: W-King X20 JBL Boombox 3 killer! this should be illegal! - I was shocked!
- Jay’s Straight Up Reviews & More: New! W-King X20 vs JBL Boombox 3 🛜 Head to Head 🔋Battery Powered 📊Custom EQ - Links In Description
- Alan Ross Reviews: Tronsmart Bang Max Review, JBL Boombox 3 wannabe 130w
- Jay’s Straight Up Reviews & More: Skullcandy BARREL XT vs JBL Boombox 3 🤯Budget Banger vs Reigning Champ 🔋 Battery Powered 🏠 Indoors
- Jay’s Straight Up Reviews & More: SONY ULT Field 7 💣vs JBL Boombox 3 🧨 Showdown! 🪇Let’s Shake it Up! 🔋Battery Powered Basement Battle
- AudioTribe: JBL Authentics 500 VS JBL Boombox 3 Sound Test Comparison
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