Harman Kardon Wireless Dual Sound Speakers Ranked

Wireless Dual Sound is Harman Kardon’s own feature for wirelessly linking two compatible HK speakers together. It’s Harman Kardon-only.

4 ranked Harman Kardon speaker(s) below support Wireless Dual Sound.

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Boombox Size Portable Bluetooth Speakers

Ranked #12 of 75 in Boombox Size Portable Bluetooth Speakers - Harman Kardon Onyx Studio 6: $130 Amazon eBay

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.

Full Harman Kardon Onyx Studio 6 review and specifications →

Amplifier Power	50W RMS
App	No
Aux Input	Yes
Bass Extension (-10dB)	37Hz
Battery Life	8 hours (Manufacturer specified)
Bluetooth Codecs	SBC
Bluetooth Latency	180ms
Bluetooth Version	4.2
Built-in Microphone	Yes
Digital Aux Input	No
Dimensions	5” x 11.5” x 11.2” (128 x 291 x 284 mm)
Drivers	1x 120mm (4.7”) woofer + 1x 25mm (1”) tweeter + 1x passive radiator
EQ	No
IP Rating	IPX7
Maximum SPL	96dB (measured by Alan Ross Reviews)
Omnidirectional	No
Party Mode	Yes (Wireless Dual Sound)
Power Bank	No
Power Input	DC Barrel Connector (19V/2A)
Stereo	No
TWS	Yes (see https://www.reddit.com/r/Bluetooth_Speakers/comments/w339x5/how_to_harman_kardon_onyx_studio_5_6_dual_sound/)
USB Playback	No
Weight	6.5 lbs (2.94 kg)

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Ranked #13 of 75 in Boombox Size Portable Bluetooth Speakers - Harman Kardon Onyx Studio 7: $248.90 Amazon eBay

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 Power	50W RMS
App	No
Aux Input	Yes
Aux Latency	0ms
Bass Extension (-10dB)	37Hz
Battery Life	8 hours (Manufacturer specified)
Bluetooth Codecs	SBC
Bluetooth Latency	266ms
Bluetooth Version	4.2
Built-in Microphone	Yes
Digital Aux Input	No
Dimensions	11.3” x 11.3” (285.8 x 285.8 mm) (round design)
Drivers	120mm woofer + 2x 25mm tweeters
EQ	No
IP Rating	None
Maximum SPL	96dB (measured by Alan Ross Reviews)
Omnidirectional	No
Party Mode	Yes (Wireless Dual Sound)
Power Bank	No
Power Input	DC Barrel Connector (19V/2.1A)
Stereo	Partially (1 woofer)
TWS	No
USB Playback	No
Weight	6.4 lbs (2.9 kg)

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Ranked #20 of 75 in Boombox Size Portable Bluetooth Speakers - Harman Kardon Go + Play 2: $350 Discontinued eBay

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. Discontinued.

Full Harman Kardon Go + Play 2 review and specifications →

Amplifier Power	100W AC / 30W battery
App	No
Aux Input	Yes
Aux Latency	0ms
Bass Extension (-10dB)	40Hz
Battery Life	8 hours (Manufacturer specified)
Bluetooth Codecs	SBC
Bluetooth Latency	33ms
Bluetooth Version	4.1
Built-in Microphone	Yes
Digital Aux Input	No
Dimensions	20” x 9” x 9.5” (508 x 228.6 x 241.3 mm)
Discontinued	Yes
Drivers	2x 90mm (3.5”) woofers (front and rear firing) + 2x 20mm tweeters
EQ	No
IP Rating	None
Maximum SPL	99dB (measured by Alan Ross Reviews)
Omnidirectional	No
Party Mode	Yes (Wireless Dual Sound)
Power Bank	No
Power Input	AC Power brick
Stereo	Yes
TWS	No
USB Playback	No
Weight	5.3 lbs (2.4 kg)

Search eBay for Harman Kardon Go + Play 2 →

Ranked #21 of 75 in Boombox Size Portable Bluetooth Speakers - Harman Kardon Onyx Studio 5: $499.99 Amazon eBay

Pros: The iconic circular cabinet and integrated handle make it an attractive room-to-room speaker. Reviews praise its generous bass, balanced mids and smooth top end at moderate levels, giving it a warm, relaxed presentation for casual indoor music.

Cons: The large bass boost can mask lower-mid detail and make dense mixes muddy. Battery life is only around eight hours at moderate volume, it is not especially loud, and it has no water resistance for outdoor use.

Full Harman Kardon Onyx Studio 5 review and specifications →

Amplifier Power	50W
App	No
Aux Input	Yes
Battery Life	8 hours (Manufacturer specified)
Bluetooth Codecs	SBC
Bluetooth Version	4.2
Built-in Microphone	Yes
Digital Aux Input	No
Dimensions	11.3” x 11.3” (285.8 x 285.8 mm)
Drivers	120mm woofer + 25mm tweeter + 2x passive radiators
EQ	No
IP Rating	IPX7
Omnidirectional	No
Party Mode	Yes (Wireless Dual Sound)
Power Bank	No
Power Input	DC Barrel Connector (19V/2.1A)
Stereo	Partially (1 woofer)
TWS	Yes (see https://www.reddit.com/r/Bluetooth_Speakers/comments/w339x5/how_to_harman_kardon_onyx_studio_5_6_dual_sound/)
USB Playback	No
Weight	6.6 lbs (3 kg)

Check current price at Amazon ($499.99) →Search eBay for Harman Kardon Onyx Studio 5 →