Sony ULT Field 7 vs JBL Boombox

Last updated: August 18, 2026

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.

Sony ULT Field 7 vs JBL Boombox

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 InputYesYes
Bass Extension (-10dB)~52Hz-
Battery Life30 hours (Manufacturer specified)24 hours (Manufacturer specified)
Guitar InputYes-
IP RatingIP67IPX5
Microphone InputYes (Karaoke mode with echo effect)No
Party ModeYes (Party Connect up to 100 speakers)Yes (Connect+ up to 100 speakers)
Power BankYes (USB-A, 5V/1.5A)Yes (USB-A)
Power InputAC Power cordUSB-C
StereoYesYes
OmnidirectionalNoNo
USB PlaybackYesNo
Weight13.9 lbs / 6.3 kg11.5 lbs / 5.2 kg
Bluetooth CodecsSBC, AAC, LDACSBC
AppNoNo
EQYes (App + ULT button)No
TWSYesYes
Built in MicrophoneYesNo
Bluetooth Version5.2-
Dimensions20.2" 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 Power100W60W AC / 40W battery
Drivers2x 114mm x 114mm X-Balanced woofers + 2x 46mm (1.9") tweeters2x 65mm woofers + 2x 20mm tweeters with passive radiators
Digital Aux InputNoNo
FM Tuner-No
MicroSD Playback-No
Discontinued-Yes

More useful head-to-heads from the same speaker class:

The Two Speakers In Full

Sony ULT Field 7: $400 Amazon

Sony ULT Field 7 ranking card

Pros: Better sounding than the XG500

Cons: Still not as deep bass as the top ranked speakers. 8khz peak

AppNo
Aux InputYes
Bass Extension (-10dB)~52Hz
Battery Life30 hours (Manufacturer specified)
Bluetooth CodecsSBC, AAC, LDAC
Bluetooth Version5.2
Built in MicrophoneYes
Digital Aux InputNo
Dimensions20.2" x 8.8" x 8.7" (512 x 224 x 222 mm)
Drivers2x 114mm x 114mm X-Balanced woofers + 2x 46mm (1.9") tweeters
EQYes (App + ULT button)
Guitar InputYes
IP RatingIP67
Microphone InputYes (Karaoke mode with echo effect)
OmnidirectionalNo
Output Power100W
Party ModeYes (Party Connect up to 100 speakers)
Power BankYes (USB-A, 5V/1.5A)
Power InputAC Power cord
StereoYes
TWSYes
USB PlaybackYes
Weight13.9 lbs / 6.3 kg

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JBL Boombox: $399 Discontinued JBL Boombox

JBL Boombox ranking card

Pros: Connect+ up to 100 speakers.

Cons: Treble isn’t very smooth. Discontinued.

AppNo
Aux InputYes
Battery Life24 hours (Manufacturer specified)
Bluetooth CodecsSBC
Built in MicrophoneNo
Digital Aux InputNo
Dimensions10" x 18.1" x 7.7" (254.5 x 458.5 x 195.5 mm)
DiscontinuedYes
Drivers2x 65mm woofers + 2x 20mm tweeters with passive radiators
EQNo
FM TunerNo
IP RatingIPX5
MicroSD PlaybackNo
Microphone InputNo
OmnidirectionalNo
Output Power60W AC / 40W battery
Party ModeYes (Connect+ up to 100 speakers)
Power BankYes (USB-A)
Power InputUSB-C
StereoYes
TWSYes
USB PlaybackNo
Weight11.5 lbs / 5.2 kg

As an eBay Partner, we may be compensated if you make a purchase.