Short answer: the Yeahbox Sonic Boom Max 3. It ranks #54 of 91 boombox speakers by sound quality (rated 3.2/5) at $228.99 and is still sold new; the Turtlebox Gen 2 ranks #86 (rated 2.1/5) and is discontinued, so it is only an option used. The Turtlebox Gen 2’s replacement, the Turtlebox Gen 3, is rated 2.1/5 at $430.
The Turtlebox Gen 2 is the lighter pick. Waterproof (IP67) and crushproof, and loud: Outeraudio measured about 104 dB at one meter. At 10 lbs (4.54 kg) it weighs much less than the Yeahbox Sonic Boom Max 3 at 16.8 lbs (7.64 kg). The tradeoff: Sounds basically identical to the original and the Turtlebox Gen 3: each generation mainly added features, not sound quality.
The Yeahbox Sonic Boom Max 3 is the better-sounding option. A large 3-way, 5-driver party speaker with claimed 200W RMS output, a 111Wh battery, USB-C fast charging, app EQ, TWS pairing, and aux, USB and microSD playback. It has an adjustable EQ, which the Turtlebox Gen 2 lacks. The catch: There is limited independent testing and the water/dust rating is reported inconsistently across listings.
Buy the Yeahbox Sonic Boom Max 3. It is rated higher for sound quality and still sold new, while the Turtlebox Gen 2 is discontinued.
Looking for alternatives? See the complete Portable Bluetooth rankings.
Specifications Side By Side
| Turtlebox Gen 2 | Yeahbox Sonic Boom Max 3 | |
|---|---|---|
| Price | $400 Discontinued | $228.99 |
| Ranked | #86 of 91 in Boombox Size Portable Bluetooth Speakers | #54 of 91 in Boombox Size Portable Bluetooth Speakers |
| Aux Input | Yes | Yes |
| Bass Extension (-10dB) | ~65Hz | - |
| Battery Life | 25 hours (Manufacturer specified) | 111Wh (14.8V/7,500mAh) (Manufacturer specified) |
| IP Rating | IP67 | IPX6 |
| MicroSD Playback | Yes | Yes |
| Stereo | Yes | Yes |
| Omnidirectional | No | No |
| Weight | 10 lbs (4.54 kg) | 16.8 lbs (7.64 kg) |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | SBC | SBC (inferred; additional codecs unverified) |
| App | No | Yes |
| EQ | No | Yes |
| TWS | Yes | Yes |
| Party Mode | No | - |
| Power Bank | Yes (USB-C) | - |
| USB Playback | No | Yes |
| Built-in Microphone | No | - |
| Power Input | DC Barrel Connector (15V/3A) | USB-C |
| Bluetooth Version | 5.0 | 5.3 |
| Amplifier Power | 50W | 200W RMS / 300W Peak |
| Dimensions | 12” x 7” x 8.7” (305 x 178 x 222 mm) | 20.7” x 8.3” x 10.6” (525 x 210 x 268 mm) |
| Drivers | 1x 6x9” (152x228mm) woofer + 1x 1” (25mm) tweeter | 189x114mm woofer, 2x 89mm midrange, 2x 38mm tweeters |
| Digital Aux Input | No | No |
| Strap | No | No |
| Battery Capacity | 85Wh | - |
| Charging Time | 3 hours | - |
| Microphone Input | Yes (3.5mm) | - |
| Maximum SPL | 104dB (measured by Outeraudio) | - |
| Lights | - | Yes |
Related Speaker Comparisons
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- JBL Partybox Encore Essential 2 vs Yeahbox Sonic Boom Max 3
- JBL Partybox Encore vs Yeahbox Sonic Boom Max 3
- JBL Partybox Encore Essential vs Yeahbox Sonic Boom Max 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 Gen 2: $400 Discontinued eBay
Newer model: the Turtlebox Gen 3, ranked higher, rated 2.1/5, released Feb 2025. It adds party mode.
Older model: the Turtlebox (ranked lower, rated 2.1/5). See every Turtlebox generation.
Pros: Waterproof (IP67) and crushproof, and loud: Outeraudio measured about 104 dB at one meter. An 85Wh battery rated for 25 hours at low volume and about 6 at full volume, a USB-C output that charges other devices, aux and 3.5mm microphone inputs, and stereo pairing with a second Gen 2. Measured bass extension of ~65Hz (-10dB).
Cons: Sounds basically identical to the original and the Turtlebox Gen 3: each generation mainly added features, not sound quality. The nearly identical Turtlebox Gen 3 measured a V shaped tuning, with boosted lows and highs and dipped mids, yet bass only down 10dB at about 65Hz, and only about 12W RMS from its amp; Turtlebox rated this one at just 50W. Outeraudio found its balance and treble middling, with slight harshness at higher volumes, and it rattles at high volume. Nowhere near its claimed 120dB at a standard one meter distance. It charges only from its own barrel plug adapter, not USB-C, and has no app, EQ or party mode. Inside is essentially a car audio 6x9 two way speaker in a plastic box. Discontinued.
Full Turtlebox Gen 2 review and specifications →
| Released | Sep 2022 (4 years 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 | 5.0 |
| Built-in Microphone | No |
| Charging Time | 3 hours |
| 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 | 104dB (measured by Outeraudio) |
| MicroSD Playback | Yes |
| Microphone Input | Yes (3.5mm) |
| Omnidirectional | No |
| Party Mode | No |
| 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
- Reviews, Comparisons and Sound Samples
- Outeraudio: Turtlebox Gen 2 Review
- Outeraudio: Turtlebox vs EcoXgear Defender Sound Comparison
- Risk Profile: TurtleBox Demo Risk Profile Podcast
- Everyday Man: Soundboks Go Vs Turttlebox Vs EcoXGear Defender
- Turtlebox Audio: Turtlebox Gen 2 - Live Sound Demo
- KosherTech: Soundcore Rave VS Turtlebox- (Sound Test Only)🎧 More from KosherTech →
- Head-to-Head Comparisons
Yeahbox Sonic Boom Max 3: $228.99 Amazon eBay
Pros: A large 3-way, 5-driver party speaker with claimed 200W RMS output, a 111Wh battery, USB-C fast charging, app EQ, TWS pairing, and aux, USB and microSD playback. Listener comparisons describe powerful bass, strong output and decent mids and highs for outdoor party use.
Cons: There is limited independent testing and the water/dust rating is reported inconsistently across listings. Listener comparisons find it less clear and refined than stronger boombox rivals, so its big bass and output are a better fit for parties than critical listening.
Full Yeahbox Sonic Boom Max 3 review and specifications →
| Released | Apr 2025 (1 year ago) |
|---|---|
| Amplifier Power | 200W RMS / 300W Peak |
| App | Yes |
| Aux Input | Yes |
| Battery Life | 111Wh (14.8V/7,500mAh) (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC (inferred; additional codecs unverified) |
| Bluetooth Version | 5.3 |
| Digital Aux Input | No |
| Dimensions | 20.7” x 8.3” x 10.6” (525 x 210 x 268 mm) |
| Drivers | 189x114mm woofer, 2x 89mm midrange, 2x 38mm tweeters |
| EQ | Yes |
| IP Rating | IPX6 |
| Lights | Yes |
| MicroSD Playback | Yes |
| Omnidirectional | No |
| Power Input | USB-C |
| Stereo | Yes |
| Strap | No |
| TWS | Yes |
| USB Playback | Yes |
| Weight | 16.8 lbs (7.64 kg) |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
- Yeahbox Sonic Boom Max 3 vs Skullcandy Barrel
- Yeahbox Sonic Boom Max 3 vs Sony ULT Field 7
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- Yeahbox Sonic Boom Max 3 vs Soundcore Rave Party 2
- Yeahbox Sonic Boom Max 3 vs W-King T11
- Yeahbox Sonic Boom Max 3 vs Onn Medium Party Speaker Gen 2
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