Short answer: the Turtlebox Gen 2 ranks #69 of 73 boombox speakers by sound quality at $400; the Sony ULT Field 7 ranks #40 at $400. Close enough in price that the sound-quality gap is the deciding factor.
What the Turtlebox Gen 2 offers: Waterproof and crushproof, loud with punchy bass. 25 hour battery life (6 hours at full volume; 3 hour charge time). USB-C charging and USB-C output charges other devices, an upgrade over the original’s AC power brick. Pairs with a second unit for stereo. Watch for: Sounds basically identical to the original and the Gen 3: each generation mainly added features, not sound quality. They pretty much lie about all their specs and sound horrible in all youtube sound samples. Only 50w (from their indigogo page), will never hit 120db at a reasonable measuring distance. Putting your db meter right against the speaker doesn’t count, 1 meter distance is the standard. Barely any bass. Rattles at high volume. Looking at it, it appears to be a generic car 2-way 6x9 speaker in a plastic box.
What the Sony ULT Field 7 offers: Better sounding than the XG500 Watch for: Still not as deep bass as the top ranked speakers. 8khz peak
Buy the Sony ULT Field 7. It ranks higher for sound quality than the Turtlebox Gen 2 at the same price, so there is no real case for the other one.
If sound quality matters at all to you, skip the Turtlebox Gen 2. It ranks near the bottom of the 73 boombox speakers, so look higher up the list instead.
Specifications Side By Side
| Turtlebox Gen 2 | Sony ULT Field 7 | |
|---|---|---|
| Price | $400 Discontinued | $400 |
| Ranked | #69 of 73 in Boombox Size Portable Bluetooth Speakers | #40 of 73 in Boombox Size Portable Bluetooth Speakers |
| Aux Input | Yes | Yes |
| Bass Extension (-10dB) | ~65Hz | ~52Hz |
| Battery Life | 25 hours (Manufacturer specified) | 30 hours (Manufacturer specified) |
| IP Rating | IP67 | IP67 |
| MicroSD Playback | Yes | - |
| Stereo | Yes | Yes |
| Omnidirectional | No | No |
| Weight | 10 lbs / 4.54 kg | 13.9 lbs / 6.3 kg |
| Bluetooth Codecs | SBC | SBC, AAC, LDAC |
| App | No | No |
| EQ | No | Yes (App + ULT button) |
| TWS | Yes | Yes |
| Party Mode | No | Yes (Party Connect up to 100 speakers) |
| Power Bank | Yes (USB-C) | Yes (USB-A, 5V/1.5A) |
| USB Playback | No | Yes |
| Built in Microphone | No | Yes |
| Power Input | USB-C | AC Power cord |
| Bluetooth Version | 5.0 | 5.2 |
| Output Power | 50W | 100W |
| Dimensions | 12" x 7" x 8.7" (305 x 178 x 222 mm) | 20.2" x 8.8" x 8.7" (512 x 224 x 222 mm) |
| Drivers | 1x 6x9" (152x228mm) woofer + 1x 1" (25mm) tweeter | 2x 114mm x 114mm X-Balanced woofers + 2x 46mm (1.9") tweeters |
| Digital Aux Input | No | No |
| Discontinued | Yes | - |
| Guitar Input | - | Yes |
| Microphone Input | - | Yes (Karaoke mode with echo effect) |
Related Speaker Comparisons
More useful head-to-heads from the same speaker class:
- B&O Beolit 20 vs Skullcandy Barrel
- JBL Boombox 4 vs Bugani Boost Max
- Turtlebox Gen 3 vs Harman Kardon Go + Play 3
- Teufel Boomster 2021 vs Sony ULT Field 7
- Teufel Boomster NG (2017) vs Sony ULT Field 7
Prices on this page were last checked August 25, 2026 at 6:19 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.
As an eBay Partner, we may be compensated if you make a purchase.
The Two Speakers In Full
Turtlebox Gen 2: $400 Discontinued eBay
Pros: Waterproof and crushproof, loud with punchy bass. 25 hour battery life (6 hours at full volume; 3 hour charge time). USB-C charging and USB-C output charges other devices, an upgrade over the original’s AC power brick. Pairs with a second unit for stereo.
Cons: Sounds basically identical to the original and the Gen 3: each generation mainly added features, not sound quality. They pretty much lie about all their specs and sound horrible in all youtube sound samples. Only 50w (from their indigogo page), will never hit 120db at a reasonable measuring distance. Putting your db meter right against the speaker doesn’t count, 1 meter distance is the standard. Barely any bass. Rattles at high volume. Looking at it, it appears to be a generic car 2-way 6x9 speaker in a plastic box. Discontinued.
Full Turtlebox Gen 2 review and specifications →
| App | No |
|---|---|
| Aux Input | Yes |
| Bass Extension (-10dB) | ~65Hz |
| Battery Life | 25 hours (Manufacturer specified) |
| Bluetooth Codecs | SBC |
| Bluetooth Version | 5.0 |
| Built in Microphone | No |
| Digital Aux Input | No |
| Dimensions | 12" x 7" x 8.7" (305 x 178 x 222 mm) |
| Discontinued | Yes |
| Drivers | 1x 6x9" (152x228mm) woofer + 1x 1" (25mm) tweeter |
| EQ | No |
| IP Rating | IP67 |
| MicroSD Playback | Yes |
| Omnidirectional | No |
| Output Power | 50W |
| Party Mode | No |
| Power Bank | Yes (USB-C) |
| Power Input | USB-C |
| Stereo | Yes |
| TWS | Yes |
| USB Playback | No |
| Weight | 10 lbs / 4.54 kg |
- Links
- Reviews, Comparisons and Sound Samples
- 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)🎧
- Reddit Search for Turtlebox Gen 2 Review
- Head-to-Head Comparisons
- Turtlebox Gen 2 vs Turtlebox Gen 3
- Turtlebox Gen 2 vs Monster Rockin’ Roller 270
- Turtlebox Gen 2 vs ION Pathfinder 320
- Turtlebox Gen 2 vs Braven XXL 2
- Turtlebox Gen 2 vs W-King X10
- Turtlebox Gen 2 vs Marshall Tufton
- Turtlebox Gen 2 vs Bumpboxx Flare 6
- Turtlebox Gen 2 vs Turtlebox Grande
- See all 49 comparisons
Sony ULT Field 7: $400 Amazon eBay
Pros: Better sounding than the XG500
Cons: Still not as deep bass as the top ranked speakers. 8khz peak
Full Sony ULT Field 7 review and specifications →
| App | No |
|---|---|
| Aux Input | Yes |
| Bass Extension (-10dB) | ~52Hz |
| Battery Life | 30 hours (Manufacturer specified) |
| Bluetooth Codecs | SBC, AAC, LDAC |
| Bluetooth Version | 5.2 |
| Built in Microphone | Yes |
| Digital Aux Input | No |
| Dimensions | 20.2" x 8.8" x 8.7" (512 x 224 x 222 mm) |
| Drivers | 2x 114mm x 114mm X-Balanced woofers + 2x 46mm (1.9") tweeters |
| EQ | Yes (App + ULT button) |
| Guitar Input | Yes |
| IP Rating | IP67 |
| Microphone Input | Yes (Karaoke mode with echo effect) |
| Omnidirectional | No |
| Output Power | 100W |
| Party Mode | Yes (Party Connect up to 100 speakers) |
| Power Bank | Yes (USB-A, 5V/1.5A) |
| Power Input | AC Power cord |
| Stereo | Yes |
| TWS | Yes |
| USB Playback | Yes |
| Weight | 13.9 lbs / 6.3 kg |
- Links
- Reviews, Comparisons and Sound Samples
- Jay’s Straight Up Reviews & More: SONY ULT Field 7 💣vs JBL Boombox 3 🧨 Showdown! 🪇Let’s Shake it Up! 🔋Battery Powered Basement Battle More from JaysStraightUpReviews →
- Dominik Reviews: Sony ULT Field 7 vs Tribit Stormbox Blast Both good? 😂 More from Dominik Reviews →
- Reddit Search for Sony ULT Field 7 Review
- Head-to-Head Comparisons
- Sony ULT Field 7 vs Skullcandy Barrel
- Sony ULT Field 7 vs Soundcore Rave Party 2
- Sony ULT Field 7 vs Teufel Boomster NG (2017)
- Sony ULT Field 7 vs JBL Partybox On the Go
- Sony ULT Field 7 vs Sony SRS-XG500
- Sony ULT Field 7 vs JBL Boombox
- Sony ULT Field 7 vs Soundcore Motion Boom+
- Sony ULT Field 7 vs Teufel Boomster 2021
- See all 25 comparisons