Harman Kardon Onyx Studio 7 vs Harman Kardon Onyx Studio 9

Last updated: September 19, 2026

Short answer: the Onyx Studio 7 for warmer, deeper sound, the Onyx Studio 9 for newer features at a lower price. These rank #13 and #14 of 75 boombox speakers, and the two generations land on genuinely different tuning rather than one simply being a straight upgrade.

Harman Kardon Onyx Studio 7 vs Harman Kardon Onyx Studio 9

The Onyx Studio 7 leans warm, the Onyx Studio 9 leans a little thinner up top. The Onyx 7’s pros call out warm sound with boosted bass, and it reaches down to 37Hz versus 41Hz for the Onyx 9. The tradeoff is that the Onyx 7 sounds a little sterile according to its own notes, while the Onyx 9’s cons list a slight recess in the mids, a boost in the upper mids, and rolled off upper treble, plus not as much deep bass as previous Onyx Studio speakers. Neither is a clean win on sound alone.

What the Onyx Studio 9 adds:

What the Onyx Studio 7 keeps that the 9 does not: a built in microphone for calls, and a slightly lighter 6.4 lb body versus 9.3 lbs for the Onyx 9.

Buy the Harman Kardon Onyx Studio 7 if warm, bass forward sound matters more to you than app control or Auracast.

Buy the Harman Kardon Onyx Studio 9 if you want app EQ, Auracast pairing, and USB-C charging, and can live with a slightly thinner top end for $58.91 less.

Still deciding? The full Portable Bluetooth rankings cover every ranked option.

Buy the Harman Kardon Onyx Studio 9 at Amazon ($189.99) →Buy the Harman Kardon Onyx Studio 7 at Amazon ($248.90) →

Specifications Side By Side

Harman Kardon Onyx Studio 7 Harman Kardon Onyx Studio 9
Price$248.90$189.99
Ranked#13 of 75 in Boombox Size Portable Bluetooth Speakers#14 of 75 in Boombox Size Portable Bluetooth Speakers
Aux InputYesNo
Aux Latency0ms-
Bass Extension (-10dB)37Hz41Hz
Battery Life8 hours (Manufacturer specified)8 hours (Manufacturer specified)
Built-in MicrophoneYes-
IP RatingNoneNone
Bluetooth Latency266ms-
Maximum SPL96dB (measured by Alan Ross Reviews)101dB (measured by Alan Ross Reviews)
Party ModeYes (Wireless Dual Sound)Yes (Auracast)
Power InputDC Barrel Connector (19V/2.1A)AC Power Cable (2-Prong)
StereoPartially (1 woofer)Yes
OmnidirectionalNoNo
TWSNoYes
Weight6.4 lbs (2.9 kg)9.3 lbs (4.2 kg)
Bluetooth CodecsSBCSBC
AppNoYes (Harman Kardon One app)
EQNoYes (App EQ)
Power BankNo-
USB PlaybackNoNo
Amplifier Power50W RMS50W RMS
Dimensions11.3" x 11.3" (285.8 x 285.8 mm) (round design)11.4" x 11.3" x 5.1" (289.2 x 287.5 x 130 mm)
Drivers120mm woofer + 2x 25mm tweeters120mm woofer + 3x 20mm tweeters
Digital Aux InputNoNo
Bluetooth Version4.25.3
Buy the Harman Kardon Onyx Studio 9 at Amazon ($189.99) →Buy the Harman Kardon Onyx Studio 7 at Amazon ($248.90) →

More top alternatives to Harman Kardon Onyx Studio 7:

Prices on this page were last checked September 23, 2026 at 11:24 PM 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

Harman Kardon Onyx Studio 7: $248.90 Amazon eBay

Harman Kardon Onyx Studio 7 ranking card

Pros: The addition of dual tweeters gives the Studio 7 a wider, more spacious presentation than older Onyx models. It delivers strong, deep bass, useful large-room volume and can pair with a second Studio 7 for stereo. Measured bass extension of 37Hz (-10dB).

Cons: Consumer Reports finds the bass prominent and boomy, mids hazy, treble slightly smeared and the soundstage congested. Battery life remains only about eight hours, it has no water rating or advanced codecs, and it is not an especially loud outdoor speaker.

Full Harman Kardon Onyx Studio 7 review and specifications →

Amplifier Power50W RMS
AppNo
Aux InputYes
Aux Latency0ms
Bass Extension (-10dB)37Hz
Battery Life8 hours (Manufacturer specified)
Bluetooth CodecsSBC
Bluetooth Latency266ms
Bluetooth Version4.2
Built-in MicrophoneYes
Digital Aux InputNo
Dimensions11.3" x 11.3" (285.8 x 285.8 mm) (round design)
Drivers120mm woofer + 2x 25mm tweeters
EQNo
IP RatingNone
Maximum SPL96dB (measured by Alan Ross Reviews)
OmnidirectionalNo
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 ($248.90) →Search eBay for Harman Kardon Onyx Studio 7 →

Harman Kardon Onyx Studio 9: $189.99 Amazon eBay

Harman Kardon Onyx Studio 9 ranking card

Pros: An elegant 4.2kg living-room portable with a measured 41Hz -10dB bass point, 101dB maximum level, three tweeters, app EQ, stereo pairing and Auracast multi-speaker linking. Reviews praise its balanced, smooth presentation and non-fatiguing treble, making it a more music-focused choice than most party speakers. Measured bass extension of 41Hz (-10dB).

Cons: It has no water resistance, aux input or USB playback, and its eight-hour claimed battery life is short for an outdoor portable. Bass is less deep than some earlier Onyx Studio models, while the slightly recessed mids and rolled-off top end mean it is not the most open or detailed option; it still charges from an AC power cable rather than USB-C.

Full Harman Kardon Onyx Studio 9 review and specifications →

Amplifier Power50W RMS
AppYes (Harman Kardon One app)
Aux InputNo
Bass Extension (-10dB)41Hz
Battery Life8 hours (Manufacturer specified)
Bluetooth CodecsSBC
Bluetooth Version5.3
Digital Aux InputNo
Dimensions11.4" x 11.3" x 5.1" (289.2 x 287.5 x 130 mm)
Drivers120mm woofer + 3x 20mm tweeters
EQYes (App EQ)
IP RatingNone
Maximum SPL101dB (measured by Alan Ross Reviews)
OmnidirectionalNo
Party ModeYes (Auracast)
Power InputAC Power Cable (2-Prong)
StereoYes
TWSYes
USB PlaybackNo
Weight9.3 lbs (4.2 kg)
Check current price at Amazon ($189.99) →Search eBay for Harman Kardon Onyx Studio 9 →