Soundcore Boom 2 Plus vs Yeahbox Sonic Boom Ultra

Last updated: September 16, 2026

Short answer: the Yeahbox Sonic Boom Ultra for better sound quality, the Soundcore Boom 2 Plus for the lower price. The Yeahbox Sonic Boom Ultra ranks #10 of 75 boombox speakers at $349.20. The Soundcore Boom 2 Plus ranks #28 at $179.99, $169.21 cheaper.

Soundcore Boom 2 Plus vs Yeahbox Sonic Boom Ultra

What the Soundcore Boom 2 Plus offers: Quite a bit lighter than most of the other boombox size speakers. This speaker will likely move up as we get a good EQ tune that makes it a lot more neutral. Watch for: Warm tuning meaning a rolled off treble and some upper bass boost. Reasonably deep bass, but not as good as the top ranked.

What the Yeahbox Sonic Boom Ultra offers: By far the loudest boombox tested against it, hitting 106-107dB, roughly 3-5dB louder than the JBL Boombox 4, Zealot ZE41, Tribit Stormbox Blast 2, W-King X20, and Hopestar A90/A95. The massive 6x9in racetrack woofer reaches audible bass down to around 30Hz on the Country EQ preset, and a teardown confirmed genuinely robust internals: a thick vented voice coil and a dedicated crossover output per driver. HDMI ARC input/output lets it double as a TV soundbar, a feature none of its direct competitors offer. Watch for: The 500W peak-power rating doesn’t fully hold up: it gets noisy above roughly 80-90% volume, and the midrange isn’t fully refined, sometimes sitting a touch too forward. The custom EQ in the app noticeably reduces bass output compared to the factory presets and doesn’t persist after the speaker powers off. No Auracast, no removable battery, a plastic handle with some flex, and heavy at 11kg (24lb) for $388. Most of the sound-quality coverage comes from enthusiast listening-test comparisons rather than independent measurement.

Buy the Soundcore Boom 2 Plus when the price outweighs sound quality for you, and the Yeahbox Sonic Boom Ultra when sound quality outweighs the price instead.

Want more options? Browse the full Portable Bluetooth rankings.

Buy the Yeahbox Sonic Boom Ultra at Amazon ($349.20) →Buy the Soundcore Boom 2 Plus at Amazon ($179.99) →

Specifications Side By Side

Soundcore Boom 2 Plus Yeahbox Sonic Boom Ultra
Price$179.99$349.20
Ranked#28 of 75 in Boombox Size Portable Bluetooth Speakers#10 of 75 in Boombox Size Portable Bluetooth Speakers
AppYesYes
Aux InputYesYes
Bass Extension (-10dB)39Hz-
Battery Life20 hours (Manufacturer specified)-
EQYes (Pro EQ + presets)Yes (Country, Classic, and custom app EQ; custom settings don't persist after the app closes)
IP RatingIPX7IPX6
Maximum SPL111dB (measured by Alan Ross Reviews)-
MicroSD PlaybackNoYes
Party ModeYes (PartyCast 2.0)No (TWS stereo pairing of 2 units only, no Auracast)
Power BankYes (USB-C, 5V/2A)-
Power InputUSB-CUSB-C (60W fast charging)
StereoYesYes
OmnidirectionalNoNo
TWSYesYes
Weight8.4 lbs (3.8 kg)24.3 lbs (11 kg)
Bluetooth CodecsSBC, AACSBC (inferred; additional codecs unverified)
USB PlaybackNoYes
Built-in MicrophoneYes-
Amplifier Power140W320W RMS / 500W Peak
Dimensions17.3" x 9.1" x 5.9" (440 x 230 x 150 mm)23.4" x 9.8" x 12.3" (595 x 248 x 313 mm)
Drivers2x 114mm (4.5") woofers + 2x 19mm (0.75") tweeters6x9in racetrack woofer (200W) + 2x 4.5in midrange (40W each) + 2x tweeters (20W each), true 3-way
Digital Aux InputNoNo
LightsYesYes
Battery Capacity-45000mAh (Reviewer estimated)
Bluetooth Version-6.0
Inputs-HDMI ARC (in/out, usable as a TV soundbar), AUX in/out, USB drive, microSD, optional wired mic
Buy the Yeahbox Sonic Boom Ultra at Amazon ($349.20) →Buy the Soundcore Boom 2 Plus at Amazon ($179.99) →

More worthwhile head-to-heads for Yeahbox Sonic Boom Ultra:

Prices on this page were last checked September 16, 2026 at 12:41 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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The Two Speakers In Full

Soundcore Boom 2 Plus: $179.99 Amazon B&H Photo Video eBay

Soundcore Boom 2 Plus ranking card

Pros: Quite a bit lighter than most of the other boombox size speakers. This speaker will likely move up as we get a good EQ tune that makes it a lot more neutral. Measured bass extension of 39Hz (-10dB).

Cons: Warm tuning meaning a rolled off treble and some upper bass boost. Reasonably deep bass, but not as good as the top ranked.

Full Soundcore Boom 2 Plus review and specifications →

Amplifier Power140W
AppYes
Aux InputYes
Bass Extension (-10dB)39Hz
Battery Life20 hours (Manufacturer specified)
Bluetooth CodecsSBC, AAC
Built-in MicrophoneYes
Digital Aux InputNo
Dimensions17.3" x 9.1" x 5.9" (440 x 230 x 150 mm)
Drivers2x 114mm (4.5") woofers + 2x 19mm (0.75") tweeters
EQYes (Pro EQ + presets)
IP RatingIPX7
LightsYes
Maximum SPL111dB (measured by Alan Ross Reviews)
MicroSD PlaybackNo
OmnidirectionalNo
Party ModeYes (PartyCast 2.0)
Power BankYes (USB-C, 5V/2A)
Power InputUSB-C
StereoYes
TWSYes
USB PlaybackNo
Weight8.4 lbs (3.8 kg)
Check current price at Amazon ($179.99) →Check current price at B&H Photo Video →Search eBay for Soundcore Boom 2 Plus →

Yeahbox Sonic Boom Ultra: $349.20 Amazon eBay

Yeahbox Sonic Boom Ultra ranking card

Pros: By far the loudest boombox tested against it, hitting 106-107dB, roughly 3-5dB louder than the JBL Boombox 4, Zealot ZE41, Tribit Stormbox Blast 2, W-King X20, and Hopestar A90/A95. The massive 6x9in racetrack woofer reaches audible bass down to around 30Hz on the Country EQ preset, and a teardown confirmed genuinely robust internals: a thick vented voice coil and a dedicated crossover output per driver. HDMI ARC input/output lets it double as a TV soundbar, a feature none of its direct competitors offer.

Cons: The 500W peak-power rating doesn’t fully hold up: it gets noisy above roughly 80-90% volume, and the midrange isn’t fully refined, sometimes sitting a touch too forward. The custom EQ in the app noticeably reduces bass output compared to the factory presets and doesn’t persist after the speaker powers off. No Auracast, no removable battery, a plastic handle with some flex, and heavy at 11kg (24lb) for $388. Most of the sound-quality coverage comes from enthusiast listening-test comparisons rather than independent measurement.

Full Yeahbox Sonic Boom Ultra review and specifications →

Amplifier Power320W RMS / 500W Peak
AppYes
Aux InputYes
Battery Capacity45000mAh (Reviewer estimated)
Bluetooth CodecsSBC (inferred; additional codecs unverified)
Bluetooth Version6.0
Digital Aux InputNo
Dimensions23.4" x 9.8" x 12.3" (595 x 248 x 313 mm)
Drivers6x9in racetrack woofer (200W) + 2x 4.5in midrange (40W each) + 2x tweeters (20W each), true 3-way
EQYes (Country, Classic, and custom app EQ; custom settings don't persist after the app closes)
IP RatingIPX6
InputsHDMI ARC (in/out, usable as a TV soundbar), AUX in/out, USB drive, microSD, optional wired mic
LightsYes
MicroSD PlaybackYes
OmnidirectionalNo
Party ModeNo (TWS stereo pairing of 2 units only, no Auracast)
Power InputUSB-C (60W fast charging)
StereoYes
TWSYes
USB PlaybackYes
Weight24.3 lbs (11 kg)
Check current price at Amazon ($349.20) →Search eBay for Yeahbox Sonic Boom Ultra →