Harman Kardon Onyx Studio 7 vs JBL Boombox 2

Last updated: August 19, 2026

Short answer: the Harman Kardon Onyx Studio 7. It ranks #12 of 73 boombox speakers by sound quality at $298.90; the JBL Boombox 2 ranks #29 and costs $350, so there is not much of a tradeoff to weigh.

What the Harman Kardon Onyx Studio 7 gets right: Warm sound with boosted bass. Set against that: Sounds a little sterile. 8 hour battery at medium volume, teeny bit less bass than the Onyx 6.

On the JBL Boombox 2 side: 24 hour battery life (default volume); 20+ hours even at 60% volume. IPX7 rated. The catch: Somewhat bass heavy and boomy.

Buy the Harman Kardon Onyx Studio 7. It ranks higher for sound quality than the JBL Boombox 2 and costs less, so there is no real case for the other one.

If battery life is a priority, the JBL Boombox 2 is rated for 24 hours versus 8 hours for the Harman Kardon Onyx Studio 7.

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

Harman Kardon Onyx Studio 7 vs JBL Boombox 2

Specifications Side By Side

Harman Kardon Onyx Studio 7 JBL Boombox 2
Price$298.90$350 Discontinued
Ranked#12 of 73 in Boombox Size Portable Bluetooth Speakers#29 of 73 in Boombox Size Portable Bluetooth Speakers
Aux InputYesYes
Aux Latency0ms33ms
Bass Extension (-10dB)37Hz46Hz
Battery Life8 hours (Manufacturer specified)24 hours (Manufacturer specified)
Built in MicrophoneYesNo
IP RatingNoneIPX7
Bluetooth Latency266ms140ms
Max Volume96dB108dB
Party ModeYes (Wireless Dual Sound)Yes (PartyBoost up to 100 speakers)
Power InputDC Barrel Connector (19V/2.1A)AC Power brick
StereoPartially (1 woofer)Yes
OmnidirectionalNoNo
TWSNoYes
Weight6.4 lbs / 2.9 kg13 lbs / 5.9 kg
Bluetooth CodecsSBCSBC
AppNoNo
EQNoNo
Power BankNoYes (USB-A)
USB PlaybackNoNo
Output Power50W RMS160W
Dimensions11.3" x 11.3" (285.8 x 285.8 mm) (round design)19.1" x 7.9" x 10.1" (485 x 201 x 257 mm)
Drivers2x 75mm woofers + 2x 20mm tweeters2x 81mm woofers + 2x 20mm tweeters with passive radiators
Digital Aux InputNoNo
FM Tuner-No
Microphone Input-No
MicroSD Playback-No
Discontinued-Yes

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.

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
OmnidirectionalNo
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

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JBL Boombox 2: $350 Discontinued Amazon

JBL Boombox 2 ranking card

Pros: 24 hour battery life (default volume); 20+ hours even at 60% volume. IPX7 rated. Doubles as a power bank. Bluetooth 5.1 with PartyBoost (up to 100 speakers). Reaches 101dB.

Cons: Somewhat bass heavy and boomy. Discontinued.

AppNo
Aux InputYes
Aux Latency33ms
Bass Extension (-10dB)46Hz
Battery Life24 hours (Manufacturer specified)
Bluetooth CodecsSBC
Bluetooth Latency140ms
Built in MicrophoneNo
Digital Aux InputNo
Dimensions19.1" x 7.9" x 10.1" (485 x 201 x 257 mm)
DiscontinuedYes
Drivers2x 81mm woofers + 2x 20mm tweeters with passive radiators
EQNo
FM TunerNo
IP RatingIPX7
Max Volume108dB
MicroSD PlaybackNo
Microphone InputNo
OmnidirectionalNo
Output Power160W
Party ModeYes (PartyBoost up to 100 speakers)
Power BankYes (USB-A)
Power InputAC Power brick
StereoYes
TWSYes
USB PlaybackNo
Weight13 lbs / 5.9 kg

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