EarFun UBoom X vs Tribit Stormbox Blast (August 2026)

Short answer: the UBoom X, and it isn’t close. It ranks #1 of 71 boombox speakers at $128, discontinued or not. The Stormbox Blast, a genuinely excellent speaker in its own right, ranks #2 at $199.99, $72 more.

The UBoom X was tuned by Oluv, and it shows. Our notes call it possibly the best-sounding modern Bluetooth speaker, only slightly behind the Vifa Helsinki, with deeper bass than the Blast and the unusual trait of sounding correct at every volume level because it applies a different EQ curve per level rather than one fixed setting.

There’s one real catch: the out-of-box firmware. The 0.33 firmware and its default EQ are described in our notes as sounding horrible. You need to update it and load the tuned settings before the speaker performs the way its ranking suggests, and a small number of users report TWS interruptions that disabling AAC tends to fix.

Both are genuinely great; the UBoom X just measures better. The Blast isn’t a consolation prize. It’s the current #2 in a 71-speaker class and would be the easy recommendation if the UBoom X weren’t sitting at #1.

Buy the UBoom X if you can still find one, after updating its firmware first. Buy the Stormbox Blast if you want the same tier of performance currently in production.

Specifications Side By Side

	Earfun Uboom X	Tribit Stormbox Blast
Price	$128 Discontinued	$199.99
Ranked	#1 of 70 in Boombox Size Portable Bluetooth Speakers	#2 of 70 in Boombox Size Portable Bluetooth Speakers
App	Yes (Earfun Audio app)	Yes (Tribit App)
Aux Input	Yes	Yes
Aux Latency	16ms	0ms
Bass Extension (-10dB)	~38Hz	43Hz
Battery Life	30 hours (Manufacturer specified)	30 hours (Manufacturer specified)
Bluetooth Codecs	AAC, SBC	SBC
Built in Microphone	Yes	No
EQ	Yes (App EQ)	Yes (10 band)
IP Rating	IP67	IPX7
Bluetooth Latency	SBC Video mode 48ms, AAC Video mode 128ms, SBC 112ms, AAC 176ms	66ms
Max Volume	110dB	108dB
Party Mode	Yes (Up to 50 speakers)	No
Power Bank	Yes	Yes
Power Input	USB-C	AC Power cord
TWS	Yes	Yes
Weight	9 lbs / 4.1 kg	12 lbs / 5.45 kg
Stereo	Yes	Yes
USB Playback	No	No
FM Tuner	No	No
Bluetooth Version	5.3	5.3
Output Power	80W	90W RMS (140W peak)
Dimensions	15.75" x 5.91" x 8.46" (400 x 150 x 215 mm)	15.75" x 6.3" x 9.06" (400 x 160 x 230 mm)
Drivers	2x 102mm (4") woofers + 2x 20mm tweeters	2x ~107mm (4.2") woofers + 2x ~25mm tweeters
Discontinued	Yes	-
Microphone Input	-	No
MicroSD Playback	-	No

The Two Speakers In Full

Earfun Uboom X: $128 Discontinued Myearfun Amazon

Pros: Tuned by Oluv and he knocked it out of the park again. Deeper bass than the Stormbox Blast. Extremely neutral, possibly the best of any modern Bluetooth speaker slightly behind the Vifa Helsinki. This is the only speaker that sounds correct at every single volume level due to Oluv’s individual EQ settings at each volume level. Other speakers will need a different EQ at each volume level. Amazing sounding at low levels as it boosts bass and treble at low levels to account for the equal-loudness contour. Just considering the midrange and treble, this speaker is better sounding than the Earfun Uboom L.

Cons: The out of the box 0.33 firmware and EQ sounds horrible. Some people have mentioned sound interruption issues when using 2 in TWS, I don’t have this issue with my Pixel 7 Pro, try disabling AAC in that case. Discontinued.

Setup: Please update it using the Earfun app (Android or iOS) and select an Oluv EQ. The Earfun app has sound profiles created by Oluv for Studio, Indoor, Indoor+, Outdoor, Outdoor+, BOOM xxX, and Ground 0 which are all fantastic. Oluv has a newer firmware pack that brings it up a few more notches of neutral

App	Yes (Earfun Audio app)
Aux Input	Yes
Aux Latency	16ms
Bass Extension (-10dB)	~38Hz
Battery Life	30 hours (Manufacturer specified)
Bluetooth Codecs	AAC, SBC
Bluetooth Latency	SBC Video mode 48ms, AAC Video mode 128ms, SBC 112ms, AAC 176ms
Bluetooth Version	5.3
Built in Microphone	Yes
Dimensions	15.75" x 5.91" x 8.46" (400 x 150 x 215 mm)
Discontinued	Yes
Drivers	2x 102mm (4") woofers + 2x 20mm tweeters
EQ	Yes (App EQ)
FM Tuner	No
IP Rating	IP67
Max Volume	110dB
Output Power	80W
Party Mode	Yes (Up to 50 speakers)
Power Bank	Yes
Power Input	USB-C
Stereo	Yes
TWS	Yes
USB Playback	No
Weight	9 lbs / 4.1 kg

Check current price at Amazon ($128) →Check current price at Myearfun →

Tribit Stormbox Blast: $199.99 Amazon

Pros: Amazing speaker given its size, competes well with some speakers in the Party size class, bass almost as deep as a Partybox 100. Quite neutral in the default and xbass modes, but try Oluv’s EQ or Alan Ross’s EQ for a slightly more neutral sound. Oluv has mentioned v3.5 now uses his EQ as the defaults and sounds extremely good. 2 different light modes or can be turned off.

Cons: Lacks a bit of detail compared to the top ranked speakers in other size categories, dip at 5.5khz. Without the above EQ this speaker would rank around #4 in the rankings. The curved underside of the handle makes it a little harder to grip and can be uncomfortable to carry long distances.

App	Yes (Tribit App)
Aux Input	Yes
Aux Latency	0ms
Bass Extension (-10dB)	43Hz
Battery Life	30 hours (Manufacturer specified)
Bluetooth Codecs	SBC
Bluetooth Latency	66ms
Bluetooth Version	5.3
Built in Microphone	No
Dimensions	15.75" x 6.3" x 9.06" (400 x 160 x 230 mm)
Drivers	2x ~107mm (4.2") woofers + 2x ~25mm tweeters
EQ	Yes (10 band)
FM Tuner	No
IP Rating	IPX7
Max Volume	108dB
MicroSD Playback	No
Microphone Input	No
Output Power	90W RMS (140W peak)
Party Mode	No
Power Bank	Yes
Power Input	AC Power cord
Stereo	Yes
TWS	Yes
USB Playback	No
Weight	12 lbs / 5.45 kg

Check current price at Amazon ($199.99) →

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Product prices and availability were last checked August 8, 2026 at 6:24 AM UTC 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.