Harman Kardon Onyx Studio 6 vs Harman Kardon Go + Play 2

Last updated: October 1, 2026

Short answer: it comes down to price, and the Onyx Studio 6 wins there. Both are warm with boosted bass, so neither has a clear sonic edge; the Onyx Studio 6 also runs 8 hours at medium volume while the Go + Play 2 is not as loud as others. At $130 against $350, the Onyx Studio 6 is the cheaper buy.

Harman Kardon Onyx Studio 6 vs Harman Kardon Go + Play 2

Buy the Harman Kardon Onyx Studio 6 only if you find one used in good condition; both are discontinued, and it is the better rated of the two. For a new speaker, start with the Tribit Stormbox Blast instead.

There is a real gap in water resistance: the Harman Kardon Onyx Studio 6 at IPX7 (brief submersion) against the Harman Kardon Go + Play 2, which has no water resistance.

Looking for alternatives? See the complete Portable Bluetooth rankings.

Buy the Harman Kardon Onyx Studio 6 at Amazon ($130) →

Specifications Side By Side

Harman Kardon Onyx Studio 6 Harman Kardon Go + Play 2
Price$130 Discontinued$350 Discontinued
Ranked#13 of 90 in Boombox Size Portable Bluetooth Speakers#23 of 90 in Boombox Size Portable Bluetooth Speakers
Aux InputYesYes
Bass Extension (-10dB)37Hz40Hz
Battery Life8 hours (Manufacturer specified)8 hours (Manufacturer specified)
Built-in MicrophoneYesYes
IP RatingIPX7None
Bluetooth Latency180ms33ms
Maximum SPL96dB (measured by Alan Ross Reviews)99dB (measured by Alan Ross Reviews)
Party ModeYes (Wireless Dual Sound)Yes (Wireless Dual Sound)
Power InputDC Barrel Connector (19V/2A)AC Power brick
StereoNoYes
OmnidirectionalNoNo
TWSYes (see https://www.reddit.com/r/Bluetooth_Speakers/comments/w339x5/how_to_harman_kardon_onyx_studio_5_6_dual_sound/)No
Weight6.5 lbs (2.94 kg)5.3 lbs (2.4 kg)
BluetoothYesYes
Bluetooth CodecsSBCSBC
AppNoNo
EQNoNo
Power BankNoNo
USB PlaybackNoNo
Bluetooth Version4.24.1
Amplifier Power50W RMS100W AC / 30W battery
Dimensions5” x 11.5” x 11.2” (128 x 291 x 284 mm)20” x 9” x 9.5” (508 x 228.6 x 241.3 mm)
Drivers1x 120mm (4.7”) woofer + 1x 25mm (1”) tweeter + 1x passive radiator2x 90mm (3.5”) woofers (front and rear firing) + 2x 20mm tweeters
Digital Aux InputNoNo
StrapNoNo
Aux Latency-0ms
Buy the Harman Kardon Onyx Studio 6 at Amazon ($130) →

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Prices on this page were last checked October 2, 2026 at 10:18 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 6: $130 Discontinued Amazon eBay

Harman Kardon Onyx Studio 6 ranking card

Newer model: the Harman Kardon Onyx Studio 9, ranked lower, rated 4.1/5.

Pros: Harman Kardon Onyx Studio 6 uses a 120mm woofer, 25mm tweeter and passive radiator. Its 2.94 kg, claimed 8 hours (Manufacturer specified) battery life, IPX7 protection, aux input and up to 96dB make it a practical option for its intended room or portable use. Measured bass extension of 37Hz (-10dB).

Cons: Bass is limited by its 37Hz specification. There is no companion app. No EQ adjustment. Warm tuning with boosted bass, and not as loud as others. Discontinued.

Full Harman Kardon Onyx Studio 6 review and specifications →

Amplifier Power50W RMS
AppNo
Aux InputYes
Bass Extension (-10dB)37Hz
Battery Life8 hours (Manufacturer specified)
BluetoothYes
Bluetooth CodecsSBC
Bluetooth Latency180ms
Bluetooth Version4.2
Built-in MicrophoneYes
Digital Aux InputNo
Dimensions5” x 11.5” x 11.2” (128 x 291 x 284 mm)
Drivers1x 120mm (4.7”) woofer + 1x 25mm (1”) tweeter + 1x passive radiator
EQNo
IP RatingIPX7
Maximum SPL96dB (measured by Alan Ross Reviews)
OmnidirectionalNo
Party ModeYes (Wireless Dual Sound)
Power BankNo
Power InputDC Barrel Connector (19V/2A)
StereoNo
StrapNo
TWSYes (see https://www.reddit.com/r/Bluetooth_Speakers/comments/w339x5/how_to_harman_kardon_onyx_studio_5_6_dual_sound/)
USB PlaybackNo
Weight6.5 lbs (2.94 kg)
Check current price at Amazon ($130) →Search eBay for Harman Kardon Onyx Studio 6 →

Harman Kardon Go + Play 2: $350 Discontinued eBay

Harman Kardon Go + Play 2 ranking card

Newer model: the Harman Kardon Go + Play 3, ranked higher, rated 4.4/5.

Pros: At 2.4 kg, Harman Kardon Go + Play 2 combines 2x 90mm (3.5”) woofers (front and rear firing) + 2x 20mm tweeters with Bluetooth. Claimed 8 hours (manufacturer specified) battery life, up to 99db and stereo playback make its feature set practical for its intended room or portable use. Measured bass extension of 40Hz (-10dB).

Cons: Bass is limited by its 40Hz specification. There is no companion app. No EQ adjustment. Not as loud as others. Discontinued.

Full Harman Kardon Go + Play 2 review and specifications →

Amplifier Power100W AC / 30W battery
AppNo
Aux InputYes
Aux Latency0ms
Bass Extension (-10dB)40Hz
Battery Life8 hours (Manufacturer specified)
BluetoothYes
Bluetooth CodecsSBC
Bluetooth Latency33ms
Bluetooth Version4.1
Built-in MicrophoneYes
Digital Aux InputNo
Dimensions20” x 9” x 9.5” (508 x 228.6 x 241.3 mm)
Drivers2x 90mm (3.5”) woofers (front and rear firing) + 2x 20mm tweeters
EQNo
IP RatingNone
Maximum SPL99dB (measured by Alan Ross Reviews)
OmnidirectionalNo
Party ModeYes (Wireless Dual Sound)
Power BankNo
Power InputAC Power brick
StereoYes
StrapNo
TWSNo
USB PlaybackNo
Weight5.3 lbs (2.4 kg)
Search eBay for Harman Kardon Go + Play 2 →