Short answer: the JBL Boombox 3 Wifi. It ranks #20 of 73 boombox speakers by sound quality at $389.95; the Sony ULT Field 7 ranks #40 and costs $400, which makes this an easy call rather than a real tradeoff.
What the JBL Boombox 3 Wifi offers: Loudest speaker in the category. Slightly better frequency response than the non-wifi version. Watch for: Bass boosted. Dip at 160hz
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 JBL Boombox 3 Wifi. It ranks higher for sound quality than the Sony ULT Field 7 and costs less, which settles it without a real tradeoff to make.
Specifications Side By Side
| JBL Boombox 3 Wifi | Sony ULT Field 7 | |
|---|---|---|
| Price | $389.95 | $400 |
| Ranked | #20 of 73 in Boombox Size Portable Bluetooth Speakers | #40 of 73 in Boombox Size Portable Bluetooth Speakers |
| Aux Input | Yes | Yes |
| Bass Extension (-10dB) | 43Hz | ~52Hz |
| Battery Life | 24 hours (Manufacturer specified) | 30 hours (Manufacturer specified) |
| IP Rating | IP67 | IP67 |
| Max Volume | 111dB | - |
| Party Mode | No | Yes (Party Connect up to 100 speakers) |
| Power Bank | Yes (USB-A, 5V/2A) | Yes (USB-A, 5V/1.5A) |
| Power Input | AC Power cable | AC Power cord |
| Stereo | Yes | Yes |
| Omnidirectional | No | No |
| TWS | Yes | Yes |
| Weight | 14.6 lbs / 6.6 kg | 13.9 lbs / 6.3 kg |
| Wifi | Yes | - |
| Bluetooth Codecs | SBC | SBC, AAC, LDAC |
| App | No | No |
| EQ | No | Yes (App + ULT button) |
| USB Playback | No | Yes |
| Built in Microphone | No | Yes |
| Output Power | 200W AC / 140W battery | 100W |
| Dimensions | 19.1" x 10.1" x 7.9" (484 x 256 x 200 mm) | 20.2" x 8.8" x 8.7" (512 x 224 x 222 mm) |
| Drivers | 1x 189mm subwoofer + 2x 81mm woofers + 2x 20mm tweeters | 2x 114mm x 114mm X-Balanced woofers + 2x 46mm (1.9") tweeters |
| Digital Aux Input | No | No |
| Guitar Input | - | Yes |
| Microphone Input | - | Yes (Karaoke mode with echo effect) |
| Bluetooth Version | - | 5.2 |
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Prices on this page were last checked August 27, 2026 at 10:09 PM 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
JBL Boombox 3 Wifi: $389.95 Amazon eBay
Pros: Loudest speaker in the category. Slightly better frequency response than the non-wifi version.
Cons: Bass boosted. Dip at 160hz
Full JBL Boombox 3 Wifi review and specifications →
| App | No |
|---|---|
| Aux Input | Yes |
| Bass Extension (-10dB) | 43Hz |
| Battery Life | 24 hours (Manufacturer specified) |
| Bluetooth Codecs | SBC |
| Built in Microphone | No |
| Digital Aux Input | No |
| Dimensions | 19.1" x 10.1" x 7.9" (484 x 256 x 200 mm) |
| Drivers | 1x 189mm subwoofer + 2x 81mm woofers + 2x 20mm tweeters |
| EQ | No |
| IP Rating | IP67 |
| Max Volume | 111dB |
| Omnidirectional | No |
| Output Power | 200W AC / 140W battery |
| Party Mode | No |
| Power Bank | Yes (USB-A, 5V/2A) |
| Power Input | AC Power cable |
| Stereo | Yes |
| TWS | Yes |
| USB Playback | No |
| Weight | 14.6 lbs / 6.6 kg |
| Wifi | Yes |
- Links
- Reviews, Comparisons and Sound Samples
- Dominik Reviews: JBL Partybox Encore 2 vs JBL Boombox 3 WiFi - Sound Test - Wide vs Narrow Soundstage! More from Dominik Reviews →
- Mateusz Cholewa: JBL Encore 2 Partybox Deep Bass 🆚 Jbl Boombox 3 WiFi 🎶 More from Mateusz Cholewa →
- Alan Ross Reviews: Not quite! JBL Authentics 300 review and sound test vs Boombox 3, Encore and Stormbox Blast More from alanrossreviews →
- Alan Ross Reviews: WiFi Edition: JBL Boombox 3 ultimate review! vs Boombox 3 Bluetooth edition
- Mateusz Cholewa: Soundcore Rave 3🧐 🆚 Jbl Boombox 3 WiFi
- Reddit Search for JBL Boombox 3 Wifi Review
- Head-to-Head Comparisons
- JBL Boombox 3 Wifi vs JBL Boombox 3
- JBL Boombox 3 Wifi vs Harman Kardon Onyx Studio 5
- JBL Boombox 3 Wifi vs Tribit Stormbox Blast 2
- JBL Boombox 3 Wifi vs Harman Kardon Go + Play 2
- JBL Boombox 3 Wifi vs JBL Boombox 4
- JBL Boombox 3 Wifi vs LG Xboom Stage 301
- JBL Boombox 3 Wifi vs Zealot S95
- JBL Boombox 3 Wifi vs Zealot S89
- 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 W-King T11
- Sony ULT Field 7 vs JBL Boombox
- Sony ULT Field 7 vs Soundcore Motion Boom+
- See all 48 comparisons