Short answer: the Sony ULT Field 7 ranks #40 of 73 boombox speakers by sound quality at $400; the JBL Boombox ranks #46 at $399. Close enough in price that the sound-quality gap is the deciding factor.
What the Sony ULT Field 7 offers: Better sounding than the XG500. Watch for: Still not as deep bass as the top ranked speakers.
The case for the JBL Boombox: Connect+ up to 100 speakers. The tradeoff: Treble isn’t very smooth.
Buy the Sony ULT Field 7 if sound quality matters more than the price. Buy the JBL Boombox if the price matters more than sound quality.
Specifications Side By Side
| Sony ULT Field 7 | JBL Boombox | |
|---|---|---|
| Price | $400 | $399 Discontinued |
| Ranked | #40 of 73 in Boombox Size Portable Bluetooth Speakers | #46 of 73 in Boombox Size Portable Bluetooth Speakers |
| Aux Input | Yes | Yes |
| Bass Extension (-10dB) | ~52Hz | - |
| Battery Life | 30 hours (Manufacturer specified) | 24 hours (Manufacturer specified) |
| Guitar Input | Yes | - |
| IP Rating | IP67 | IPX5 |
| Microphone Input | Yes (Karaoke mode with echo effect) | No |
| Party Mode | Yes (Party Connect up to 100 speakers) | Yes (Connect+ up to 100 speakers) |
| Power Bank | Yes (USB-A, 5V/1.5A) | Yes (USB-A) |
| Power Input | AC Power cord | USB-C |
| Stereo | Yes | Yes |
| Omnidirectional | No | No |
| USB Playback | Yes | No |
| Weight | 13.9 lbs / 6.3 kg | 11.5 lbs / 5.2 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) | 10" x 18.1" x 7.7" (254.5 x 458.5 x 195.5 mm) |
| Output Power | 100W | 60W AC / 40W battery |
| Drivers | 2x 114mm x 114mm X-Balanced woofers + 2x 46mm (1.9") tweeters | 2x 65mm woofers + 2x 20mm tweeters with passive radiators |
| Digital Aux Input | No | No |
| FM Tuner | - | No |
| MicroSD Playback | - | No |
| Discontinued | - | Yes |
Related Speaker Comparisons
More useful head-to-heads from the same speaker class:
- B&O Beolit 20 vs Skullcandy Barrel
- Sony SRS-XG500 vs Marshall Tufton
- B&O Beolit 20 vs Soundcore Motion Boom+
- JBL Boombox vs Bumpboxx Flare 8
- Sony ULT Field 7 vs Vifa Helsinki
The Two Speakers In Full
Sony ULT Field 7: $400 Amazon
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 |
As an eBay Partner, we may be compensated if you make a purchase.
- Links
- Reviews, Comparisons and Sound Samples
- 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 JBL Partybox On the Go
- Sony ULT Field 7 vs Sony SRS-XG500
- Sony ULT Field 7 vs Soundcore Motion Boom+
- Sony ULT Field 7 vs B&O Beolit 20
- Sony ULT Field 7 vs JBL Authentics 300
- Sony ULT Field 7 vs JBL Boombox 2
- See all 19 comparisons
JBL Boombox: $399 Discontinued JBL Boombox
Pros: Connect+ up to 100 speakers.
Cons: Treble isn’t very smooth. Discontinued.
Full JBL Boombox review and specifications →
| App | No |
|---|---|
| Aux Input | Yes |
| Battery Life | 24 hours (Manufacturer specified) |
| Bluetooth Codecs | SBC |
| Built in Microphone | No |
| Digital Aux Input | No |
| Dimensions | 10" x 18.1" x 7.7" (254.5 x 458.5 x 195.5 mm) |
| Discontinued | Yes |
| Drivers | 2x 65mm woofers + 2x 20mm tweeters with passive radiators |
| EQ | No |
| FM Tuner | No |
| IP Rating | IPX5 |
| MicroSD Playback | No |
| Microphone Input | No |
| Omnidirectional | No |
| Output Power | 60W AC / 40W battery |
| Party Mode | Yes (Connect+ up to 100 speakers) |
| Power Bank | Yes (USB-A) |
| Power Input | USB-C |
| Stereo | Yes |
| TWS | Yes |
| USB Playback | No |
| Weight | 11.5 lbs / 5.2 kg |
As an eBay Partner, we may be compensated if you make a purchase.
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons


