Harman Kardon Onyx Studio 9 vs Tribit Stormbox Blast (August 2026)

Short answer: the Tribit Stormbox Blast. It ranks #2 of 70 boombox speakers at $179.99; the Harman Kardon Onyx Studio 9 ranks #13 and costs $186.99, so there is not much of a tradeoff to weigh.

On the Harman Kardon Onyx Studio 9 side: Auracast multi-speaker connection alongside classic stereo pairing. The catch: Slight recessed mids, boost in the upper mids, rolled off upper treble.

The case for the Tribit Stormbox Blast: Amazing speaker given its size, competes well with some speakers in the Party size class. The catch: Lacks a bit of detail compared to the top ranked speakers in other size categories, dip at 5.5khz.

Buy the Harman Kardon Onyx Studio 9 if the price matters more than the ranking. Buy the Tribit Stormbox Blast if the ranking matters more than the price.

Specifications Side By Side

	Harman Kardon Onyx Studio 9	Tribit Stormbox Blast
Price	$186.99	$179.99
Ranked	#13 of 70 in Boombox Size Portable Bluetooth Speakers	#2 of 70 in Boombox Size Portable Bluetooth Speakers
Bass Extension (-10dB)	41Hz	43Hz
Max Volume	101dB	108dB
IP Rating	None	IPX7
Power Input	USB-C	AC Power cord
Stereo	Yes	Yes
TWS	Yes	Yes
Weight	9.3 lbs / 4.2 kg	12 lbs / 5.45 kg
App	Yes (Harman Kardon One app)	Yes (Tribit App)
Bluetooth Codecs	SBC	SBC
EQ	Yes (App EQ)	Yes (10 band)
Party Mode	Yes (Auracast)	No
USB Playback	No	No
Bluetooth Version	5.3	5.3
Battery Life	8 hours (Manufacturer specified)	30 hours (Manufacturer specified)
Output Power	50W RMS	90W RMS (140W peak)
Dimensions	11.39" x 11.32" x 5.12" (289.2 x 287.5 x 130 mm)	15.75" x 6.3" x 9.06" (400 x 160 x 230 mm)
Drivers	120mm woofer + 3x 20mm tweeters	2x ~107mm (4.2") woofers + 2x ~25mm tweeters
Aux Input	-	Yes
Aux Latency	-	0ms
Built in Microphone	-	No
Bluetooth Latency	-	66ms
Power Bank	-	Yes
FM Tuner	-	No
Microphone Input	-	No
MicroSD Playback	-	No

The Two Speakers In Full

Harman Kardon Onyx Studio 9: $186.99 Amazon

Pros: Auracast multi-speaker connection alongside classic stereo pairing. Harman Kardon One app with EQ. USB-C charging, up from the previous generation’s AC power brick.

Cons: Slight recessed mids, boost in the upper mids, rolled off upper treble. Not as deep bass as previous Onyx Studio speakers.

App	Yes (Harman Kardon One app)
Bass Extension (-10dB)	41Hz
Battery Life	8 hours (Manufacturer specified)
Bluetooth Codecs	SBC
Bluetooth Version	5.3
Dimensions	11.39" x 11.32" x 5.12" (289.2 x 287.5 x 130 mm)
Drivers	120mm woofer + 3x 20mm tweeters
EQ	Yes (App EQ)
IP Rating	None
Max Volume	101dB
Output Power	50W RMS
Party Mode	Yes (Auracast)
Power Input	USB-C
Stereo	Yes
TWS	Yes
USB Playback	No
Weight	9.3 lbs / 4.2 kg

Check current price at Amazon ($186.99) →

Tribit Stormbox Blast: $179.99 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 ($179.99) →

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Product prices and availability were last checked August 9, 2026 at 6:57 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.