JBL Authentics 300 Specifications and Review

Last updated: August 17, 2026

The JBL Authentics 300 ranks #30 out of 73 total Boombox Size Portable Bluetooth Speakers for sound quality. See Top Recommended Speakers By Attribute for all the top speaker suggestions.

Brand: JBL

Prices on this page were last checked August 21, 2026 at 5:30 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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#30 JBL Authentics 300: $299.95 Amazon eBay

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.

Related speakers: JBL Authentics 200, JBL Authentics 500.

How it compares: Just above it: JBL Boombox 2 - $50 more, 16 more hours of battery life. Just below it: B&O Beolit 20 - $368 more.

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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