Harman Kardon Go + Play 3 vs Harman Kardon Onyx Studio 7

Last updated: August 18, 2026

Short answer: the Harman Kardon Go + Play 3 for better sound quality, the Harman Kardon Onyx Studio 7 for the lower price. The Harman Kardon Go + Play 3 ranks #3 of 73 boombox speakers at $385. The Harman Kardon Onyx Studio 7 ranks #12 at $298.90, $86.10 cheaper.

The case for the Harman Kardon Go + Play 3: Warm sound with boosted bass. The tradeoff: Just a little over half as loud as the higher rated boomboxes.

What the Harman Kardon Onyx Studio 7 offers: Warm sound with boosted bass. Watch for: Sounds a little sterile.

Buy the Harman Kardon Go + Play 3 if sound quality matters more than the price. Buy the Harman Kardon Onyx Studio 7 if the price matters more than sound quality.

Buy the Harman Kardon Go + Play 3 at Amazon ($385) →Buy the Harman Kardon Onyx Studio 7 at Amazon ($298.90) →

Harman Kardon Go + Play 3 vs Harman Kardon Onyx Studio 7

Specifications Side By Side

Harman Kardon Go + Play 3 Harman Kardon Onyx Studio 7
Price$385$298.90
Ranked#3 of 73 in Boombox Size Portable Bluetooth Speakers#12 of 73 in Boombox Size Portable Bluetooth Speakers
AppYes (Harman Kardon One app)No
Aux Latency112ms0ms
Bass Extension (-10dB)35Hz37Hz
Battery Life8 hours (Manufacturer specified)8 hours (Manufacturer specified)
Built in MicrophoneYesYes
EQYes (App EQ)No
IP RatingNoneNone
Bluetooth Latency120ms266ms
Max Volume103dB96dB
Power InputAC Power brickDC Barrel Connector (19V/2.1A)
StereoYesPartially (1 woofer)
OmnidirectionalNoNo
TWSYesNo
Weight10.4 lbs / 4.7 kg6.4 lbs / 2.9 kg
Bluetooth CodecsSBC, AACSBC
Power BankYesNo
Party ModeNoYes (Wireless Dual Sound)
USB PlaybackNoNo
Bluetooth Version5.2-
Output Power160W RMS50W RMS
Dimensions17.3" x 9.4" x 7.6" (439 x 240 x 192 mm)11.3" x 11.3" (285.8 x 285.8 mm) (round design)
Aux InputYesYes
Drivers1x 130mm (5") subwoofer + 2x 70mm midrange drivers + 2x 20mm tweeters2x 75mm woofers + 2x 20mm tweeters
Digital Aux InputNoNo
Buy the Harman Kardon Go + Play 3 at Amazon ($385) →Buy the Harman Kardon Onyx Studio 7 at Amazon ($298.90) →

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

The Two Speakers In Full

Harman Kardon Go + Play 3: $385 Amazon

Harman Kardon Go + Play 3 ranking card

Pros: Warm sound with boosted bass. Deepest bass out of any speaker in this size. Sound is more natural than the Go + Play2.

Cons: Just a little over half as loud as the higher rated boomboxes. Only 8 hours of battery at medium volume. No water rating.

Setup: Use the hidden EQ modes to adjust the bass up when outside and down when inside. To adjust bass, quickly press the bluetooth and volume down buttons together, the number of light flashes tell you what mode you’re in. To adjust treble, quickly press the volume up and phone buttons at the same time, the number of yellow flashes on the light tell you what mode you are in.

Full Harman Kardon Go + Play 3 review and specifications →

AppYes (Harman Kardon One app)
Aux InputYes
Aux Latency112ms
Bass Extension (-10dB)35Hz
Battery Life8 hours (Manufacturer specified)
Bluetooth CodecsSBC, AAC
Bluetooth Latency120ms
Bluetooth Version5.2
Built in MicrophoneYes
Digital Aux InputNo
Dimensions17.3" x 9.4" x 7.6" (439 x 240 x 192 mm)
Drivers1x 130mm (5") subwoofer + 2x 70mm midrange drivers + 2x 20mm tweeters
EQYes (App EQ)
IP RatingNone
Max Volume103dB
OmnidirectionalNo
Output Power160W RMS
Party ModeNo
Power BankYes
Power InputAC Power brick
StereoYes
TWSYes
USB PlaybackNo
Weight10.4 lbs / 4.7 kg
Check current price at Amazon ($385) →Search eBay for Harman Kardon Go + Play 3 →

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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
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
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.