Harman Kardon Onyx Studio 7 vs Soundcore Boom 2 Plus

Last updated: August 15, 2026

Short answer: the Harman Kardon Onyx Studio 7 for better sound quality, the Soundcore Boom 2 Plus for the lower price. The Harman Kardon Onyx Studio 7 ranks #12 of 73 boombox speakers at $298.90. The Soundcore Boom 2 Plus ranks #26 at $169.98, $128.92 cheaper.

What the Harman Kardon Onyx Studio 7 offers: Warm sound with boosted bass. Watch for: Sounds a little sterile. 8 hour battery at medium volume, teeny bit less bass than the Onyx 6.

What the Soundcore Boom 2 Plus offers: Quite a bit lighter than most of the other boombox size speakers. Watch for: Warm tuning meaning a rolled off treble and some upper bass boost.

Buy the Harman Kardon Onyx Studio 7 if sound quality matters more than the price. Buy the Soundcore Boom 2 Plus if the price matters more than sound quality.

If battery life is a priority, the Soundcore Boom 2 Plus is rated for 20 hours versus 8 hours for the Harman Kardon Onyx Studio 7.

If water resistance matters to you, the Soundcore Boom 2 Plus at IPX7 (brief submersion) holds up far better than the Harman Kardon Onyx Studio 7 at no water resistance.

Buy the Harman Kardon Onyx Studio 7 at Amazon ($298.90) →Buy the Soundcore Boom 2 Plus at Amazon ($169.98) →

Harman Kardon Onyx Studio 7 vs Soundcore Boom 2 Plus

Specifications Side By Side

Harman Kardon Onyx Studio 7 Soundcore Boom 2 Plus
Price$298.90$169.98
Ranked#12 of 73 in Boombox Size Portable Bluetooth Speakers#26 of 73 in Boombox Size Portable Bluetooth Speakers
Aux InputYesYes
Aux Latency0ms-
Bass Extension (-10dB)37Hz39Hz
Battery Life8 hours (Manufacturer specified)20 hours (Manufacturer specified)
Built in MicrophoneYesYes
IP RatingNoneIPX7
Bluetooth Latency266ms-
Max Volume96dB111dB
Party ModeYes (Wireless Dual Sound)Yes (PartyCast 2.0)
Power InputDC Barrel Connector (19V/2.1A)USB-C
StereoPartially (1 woofer)Yes
TWSNoYes
Weight6.4 lbs / 2.9 kg8.4 lbs / 3.8 kg
Bluetooth CodecsSBCSBC, AAC
AppNoYes
EQNoYes (Pro EQ + presets)
Power BankNoYes (USB-C, 5V/2A)
USB PlaybackNoNo
Output Power50W RMS140W
Dimensions11.3" x 11.3" (285.8 x 285.8 mm) (round design)17.3" x 9.1" x 5.9" (440 x 230 x 150 mm)
Drivers2x 75mm woofers + 2x 20mm tweeters2x 114mm (4.5") woofers + 2x 19mm (0.75") tweeters
Digital Aux InputNoNo
MicroSD Playback-No
Buy the Harman Kardon Onyx Studio 7 at Amazon ($298.90) →Buy the Soundcore Boom 2 Plus at Amazon ($169.98) →

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

The Two Speakers In Full

Harman Kardon Onyx Studio 7: $298.90 Amazon

Harman Kardon Onyx Studio 7 ranking card

Pros: Warm sound with boosted bass.

Cons: Sounds a little sterile. 8 hour battery at medium volume, teeny bit less bass than the Onyx 6. Not at loud as others. No water rating.

Full Harman Kardon Onyx Studio 7 review and specifications →

AppNo
Aux InputYes
Aux Latency0ms
Bass Extension (-10dB)37Hz
Battery Life8 hours (Manufacturer specified)
Bluetooth CodecsSBC
Bluetooth Latency266ms
Built in MicrophoneYes
Digital Aux InputNo
Dimensions11.3" x 11.3" (285.8 x 285.8 mm) (round design)
Drivers2x 75mm woofers + 2x 20mm tweeters
EQNo
IP RatingNone
Max Volume96dB
Output Power50W RMS
Party ModeYes (Wireless Dual Sound)
Power BankNo
Power InputDC Barrel Connector (19V/2.1A)
StereoPartially (1 woofer)
TWSNo
USB PlaybackNo
Weight6.4 lbs / 2.9 kg
Check current price at Amazon ($298.90) →Search eBay for Harman Kardon Onyx Studio 7 →

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

Soundcore Boom 2 Plus: $169.98 Amazon Bhphotovideo

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.

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 →

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
Max Volume111dB
MicroSD PlaybackNo
Output Power140W
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 ($169.98) →Check current price at Bhphotovideo →Search eBay for Soundcore Boom 2 Plus →

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