Harman Kardon Go + Play 2 vs JBL Boombox 3 Wifi

Last updated: August 18, 2026

Short answer: the Harman Kardon Go + Play 2. It ranks #18 of 73 boombox speakers by sound quality at $350; the JBL Boombox 3 Wifi ranks #20 and costs $389.95, so there is not much of a tradeoff to weigh.

What the Harman Kardon Go + Play 2 offers: Warm sound with boosted bass. Watch for: Not as loud as others.

The case for the JBL Boombox 3 Wifi: Loudest speaker in the category. The tradeoff: Bass boosted.

Buy the Harman Kardon Go + Play 2. It ranks higher for sound quality than the JBL Boombox 3 Wifi and costs less, so there is no real case for the other one.

If battery life is a priority, the JBL Boombox 3 Wifi is rated for 24 hours versus 8 hours for the Harman Kardon Go + Play 2.

If water resistance matters to you, the JBL Boombox 3 Wifi at IP67 (brief submersion) holds up far better than the Harman Kardon Go + Play 2 at no water resistance.

Buy the JBL Boombox 3 Wifi at Amazon ($389.95) →

Harman Kardon Go + Play 2 vs JBL Boombox 3 Wifi

Specifications Side By Side

Harman Kardon Go + Play 2 JBL Boombox 3 Wifi
Price$350 Discontinued$389.95
Ranked#18 of 73 in Boombox Size Portable Bluetooth Speakers#20 of 73 in Boombox Size Portable Bluetooth Speakers
Aux Latency0ms-
Bass Extension (-10dB)40Hz43Hz
Battery Life8 hours (Manufacturer specified)24 hours (Manufacturer specified)
IP RatingNoneIP67
Bluetooth Latency33ms-
Max Volume99dB111dB
Party ModeYes (Wireless Dual Sound)No
Power InputAC Power brickAC Power cable
StereoYesYes
OmnidirectionalNoNo
Bluetooth CodecsSBCSBC
AppNoNo
EQNoNo
TWSNoYes
Power BankNoYes (USB-A, 5V/2A)
USB PlaybackNoNo
Built in MicrophoneYesNo
Output Power100W AC / 30W battery200W AC / 140W battery
Dimensions20" x 9" x 9.5" (508 x 228.6 x 241.3 mm)19.1" x 10.1" x 7.9" (484 x 256 x 200 mm)
Drivers2x 90mm (3.5") woofers (front and rear firing) + 2x 20mm tweeters1x 189mm subwoofer + 2x 81mm woofers + 2x 20mm tweeters
Weight5.3 lbs / 2.4 kg14.6 lbs / 6.6 kg
DiscontinuedYes-
Digital Aux InputNoNo
Aux Input-Yes
Wifi-Yes
Buy the JBL Boombox 3 Wifi at Amazon ($389.95) →

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

The Two Speakers In Full

Harman Kardon Go + Play 2: $350 Discontinued

Harman Kardon Go + Play 2 ranking card

Pros: Warm sound with boosted bass.

Cons: Not as loud as others. No water rating. Discontinued.

Full Harman Kardon Go + Play 2 review and specifications →

AppNo
Aux Latency0ms
Bass Extension (-10dB)40Hz
Battery Life8 hours (Manufacturer specified)
Bluetooth CodecsSBC
Bluetooth Latency33ms
Built in MicrophoneYes
Digital Aux InputNo
Dimensions20" x 9" x 9.5" (508 x 228.6 x 241.3 mm)
DiscontinuedYes
Drivers2x 90mm (3.5") woofers (front and rear firing) + 2x 20mm tweeters
EQNo
IP RatingNone
Max Volume99dB
OmnidirectionalNo
Output Power100W AC / 30W battery
Party ModeYes (Wireless Dual Sound)
Power BankNo
Power InputAC Power brick
StereoYes
TWSNo
USB PlaybackNo
Weight5.3 lbs / 2.4 kg
Search eBay for Harman Kardon Go + Play 2 →

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JBL Boombox 3 Wifi: $389.95 Amazon

JBL Boombox 3 Wifi ranking card

Pros: Loudest speaker in the category. Slightly better frequency response than the non-wifi version.

Cons: Bass boosted. Dip at 160hz

Full JBL Boombox 3 Wifi review and specifications →

AppNo
Aux InputYes
Bass Extension (-10dB)43Hz
Battery Life24 hours (Manufacturer specified)
Bluetooth CodecsSBC
Built in MicrophoneNo
Digital Aux InputNo
Dimensions19.1" x 10.1" x 7.9" (484 x 256 x 200 mm)
Drivers1x 189mm subwoofer + 2x 81mm woofers + 2x 20mm tweeters
EQNo
IP RatingIP67
Max Volume111dB
OmnidirectionalNo
Output Power200W AC / 140W battery
Party ModeNo
Power BankYes (USB-A, 5V/2A)
Power InputAC Power cable
StereoYes
TWSYes
USB PlaybackNo
Weight14.6 lbs / 6.6 kg
WifiYes
Check current price at Amazon ($389.95) →Search eBay for JBL Boombox 3 Wifi →

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