JBL Authentics 300 vs Sony ULT Field 7

Last updated: August 18, 2026

Short answer: the JBL Authentics 300. It ranks #30 of 73 boombox speakers by sound quality at $299.95; the Sony ULT Field 7 ranks #40 and costs $400, so there is not much of a tradeoff to weigh.

On the JBL Authentics 300 side: Integrates both Amazon Alexa and Google Assistant simultaneously (rare for smart speakers). Set against that: Narrow sounding, bass not as deep as others.

What the Sony ULT Field 7 gets right: Better sounding than the XG500. The catch: Still not as deep bass as the top ranked speakers.

Buy the JBL Authentics 300. It ranks higher for sound quality than the Sony ULT Field 7 and costs less, so there is no real case for the other one.

If battery life is a priority, the Sony ULT Field 7 is rated for 30 hours versus 8 hours for the JBL Authentics 300.

If water resistance matters to you, the Sony ULT Field 7 at IP67 (brief submersion) holds up far better than the JBL Authentics 300 at no water resistance.

JBL Authentics 300 vs Sony ULT Field 7

Specifications Side By Side

JBL Authentics 300 Sony ULT Field 7
Price$299.95$400
Ranked#30 of 73 in Boombox Size Portable Bluetooth Speakers#40 of 73 in Boombox Size Portable Bluetooth Speakers
AppYesNo
Bass Extension (-10dB)45Hz~52Hz
Battery Life8 hours (Manufacturer specified)30 hours (Manufacturer specified)
EQYes (App EQ)Yes (App + ULT button)
IP RatingNoneIP67
Max Volume100dB-
Party ModeYes (Wi-Fi Multi-Room)Yes (Party Connect up to 100 speakers)
Power InputAC Power cableAC Power cord
StereoPartially (1 woofer)Yes
OmnidirectionalNoNo
TWSYesYes
Weight10.8 lbs / 4.9 kg13.9 lbs / 6.3 kg
WifiYes-
Bluetooth CodecsSBCSBC, AAC, LDAC
Power BankNoYes (USB-A, 5V/1.5A)
USB PlaybackYesYes
Built in MicrophoneYesYes
MicroSD PlaybackNo-
Aux InputNoYes
Output Power100W100W
Dimensions13.5" x 7.7" x 7.1" (342 x 195.6 x 180.3 mm)20.2" x 8.8" x 8.7" (512 x 224 x 222 mm)
Drivers1" tweeter + 4" woofer + passive radiators2x 114mm x 114mm X-Balanced woofers + 2x 46mm (1.9") tweeters
Digital Aux InputNoNo
Guitar Input-Yes
Microphone Input-Yes (Karaoke mode with echo effect)
Bluetooth Version-5.2

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

The Two Speakers In Full

JBL Authentics 300: $299.95 Amazon

JBL Authentics 300 ranking card

Pros: Integrates both Amazon Alexa and Google Assistant simultaneously (rare for smart speakers). Retro seventies design with leather and Quadrex grille. 100-watt amp, carries well with leather-trimmed handle. Rechargeable battery rated ~8 hours.

Cons: Narrow sounding, bass not as deep as others. Peaky upper mids. No TWS. No IP rating. Not as loud as others. Not much battery life.

AppYes
Aux InputNo
Bass Extension (-10dB)45Hz
Battery Life8 hours (Manufacturer specified)
Bluetooth CodecsSBC
Built in MicrophoneYes
Digital Aux InputNo
Dimensions13.5" x 7.7" x 7.1" (342 x 195.6 x 180.3 mm)
Drivers1" tweeter + 4" woofer + passive radiators
EQYes (App EQ)
IP RatingNone
Max Volume100dB
MicroSD PlaybackNo
OmnidirectionalNo
Output Power100W
Party ModeYes (Wi-Fi Multi-Room)
Power BankNo
Power InputAC Power cable
StereoPartially (1 woofer)
TWSYes
USB PlaybackYes
Weight10.8 lbs / 4.9 kg
WifiYes

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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

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