Short answer: the Sony ULT Field 7 if sound quality matters most, the Bumpboxx Flare 6 if price matters most. The Sony ULT Field 7 ranks #42 of 75 boombox speakers at $400. The Bumpboxx Flare 6 ranks #58 at $300, $100 cheaper.
What the Sony ULT Field 7 offers: Sony ULT Field 7 uses 2x 114mm x 114mm X-Balanced woofers + 2x 46mm (1.9”) tweeters. Its 6.3 kg, claimed 30 hours (Manufacturer specified) battery life, IP67 protection, aux input and stereo playback make it a practical option for its intended room or portable use. Watch for: Bass is limited by its ~52Hz specification. There is no companion app.
What the Bumpboxx Flare 6 offers: At 5.9 kg, Bumpboxx Flare 6 combines 6” woofer + tweeters with Bluetooth. Claimed 12 hours (manufacturer specified) battery life, ipx6 protection, up to 115db and stereo playback make its feature set practical for its intended room or portable use. Watch for: There is no companion app. No EQ adjustment.
Buy the Sony ULT Field 7 when sound quality outweighs the price for you, and the Bumpboxx Flare 6 when the price outweighs sound quality instead.
If sound quality matters at all to you, skip the Bumpboxx Flare 6. It ranks near the bottom of the 75 boombox speakers, so look higher up the list instead.
Battery life favors the Sony ULT Field 7: rated for 30 hours against 12 hours for the Bumpboxx Flare 6.
Want more options? Browse the full Portable Bluetooth rankings.
Specifications Side By Side
| Sony ULT Field 7 | Bumpboxx Flare 6 | |
|---|---|---|
| Price | $400 | $300 |
| Ranked | #42 of 75 in Boombox Size Portable Bluetooth Speakers | #58 of 75 in Boombox Size Portable Bluetooth Speakers |
| Aux Input | Yes | - |
| Bass Extension (-10dB) | ~52Hz | - |
| Battery Life | 30 hours (Manufacturer specified) | 12 hours (Manufacturer specified) |
| Guitar Input | Yes | - |
| IP Rating | IP67 | IPX6 |
| Microphone Input | Yes (Karaoke mode with echo effect) | - |
| Party Mode | Yes (Party Connect up to 100 speakers) | No |
| Power Bank | Yes (USB-A, 5V/1.5A) | No |
| Power Input | AC Power cord | USB-C |
| Stereo | Yes | Yes |
| Omnidirectional | No | No |
| USB Playback | Yes | No |
| Weight | 13.9 lbs (6.3 kg) | 13 lbs (5.9 kg) |
| Bluetooth Codecs | SBC, AAC, LDAC | SBC |
| App | No | No |
| EQ | Yes (App + ULT button) | No |
| TWS | Yes | Yes |
| Built-in Microphone | Yes | No |
| Bluetooth Version | 5.2 | - |
| Dimensions | 20.2" x 8.8" x 8.7" (512 x 224 x 222 mm) | 24" x 6" x 14" (609.6 x 152.4 x 355.6 mm) |
| Amplifier Power | 100W | 150W |
| Drivers | 2x 114mm x 114mm X-Balanced woofers + 2x 46mm (1.9") tweeters | 6" woofer + tweeters |
| Digital Aux Input | No | No |
| FM Tuner | - | Yes |
| Maximum SPL | - | 115dB (Manufacturer specified) |
| Lights | - | Yes |
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- Sony ULT Field 7 vs Tribit Stormbox Blast
- Harman Kardon Go + Play 3 vs Sony ULT Field 7
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- JBL Partybox Encore vs Sony ULT Field 7
Prices on this page were last checked September 16, 2026 at 12:41 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
Sony ULT Field 7: $400 Amazon eBay
Pros: Sony ULT Field 7 uses 2x 114mm x 114mm X-Balanced woofers + 2x 46mm (1.9”) tweeters. Its 6.3 kg, claimed 30 hours (Manufacturer specified) battery life, IP67 protection, aux input and stereo playback make it a practical option for its intended room or portable use. Measured bass extension of ~52Hz (-10dB).
Cons: Bass is limited by its ~52Hz specification. There is no companion app.
Full Sony ULT Field 7 review and specifications →
| Amplifier Power | 100W |
|---|---|
| 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 |
| 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
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Bumpboxx Flare 6: $300 eBay
Pros: At 5.9 kg, Bumpboxx Flare 6 combines 6” woofer + tweeters with Bluetooth. Claimed 12 hours (manufacturer specified) battery life, ipx6 protection, up to 115db and stereo playback make its feature set practical for its intended room or portable use.
Cons: There is no companion app. No EQ adjustment.
Full Bumpboxx Flare 6 review and specifications →
| Amplifier Power | 150W |
|---|---|
| App | No |
| Battery Life | 12 hours (Manufacturer specified) |
| Bluetooth Codecs | SBC |
| Built-in Microphone | No |
| Digital Aux Input | No |
| Dimensions | 24" x 6" x 14" (609.6 x 152.4 x 355.6 mm) |
| Drivers | 6" woofer + tweeters |
| EQ | No |
| FM Tuner | Yes |
| IP Rating | IPX6 |
| Lights | Yes |
| Maximum SPL | 115dB (Manufacturer specified) |
| Omnidirectional | No |
| Party Mode | No |
| Power Bank | No |
| Power Input | USB-C |
| Stereo | Yes |
| TWS | Yes |
| USB Playback | No |
| Weight | 13 lbs (5.9 kg) |
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons