Harman Kardon Go + Play 3 vs W-King D20

Last updated: October 12, 2026

Short answer: the Harman Kardon Go + Play 3. It ranks #3 of 98 boombox speakers by sound quality, rated 4.4/5, at $385. The W-King D20 ranks #39, rated 3.6/5, at $193, $192 cheaper, a saving that is not big enough to make up the sound-quality gap.

Harman Kardon Go + Play 3 vs W-King D20

The Harman Kardon Go + Play 3 is the better-sounding, deeper-bass choice. Warm sound with boosted bass. Its bass reaches about 35Hz before falling 10dB, against 42Hz for the W-King D20. At 10.4 lbs (4.7 kg) it weighs noticeably less than the W-King D20 at 14.3 lbs (6.5 kg). It supports AAC Bluetooth, which the W-King D20 lacks. The catch: Just a little over half as loud as the higher rated boomboxes.

The W-King D20 is the louder, longer-running choice. Comes with 2 wireless microphones. Alan Ross Reviews measured it at 112dB at full volume, against 103dB for the Harman Kardon Go + Play 3. It is rated for 24 hours of battery against 8 for the Harman Kardon Go + Play 3. It is rated IPX6, while the Harman Kardon Go + Play 3 has no water resistance. The catch: Rising frequency response but upper treble rolled off, 700Hz and 1.2kHz peaks.

Buy the Harman Kardon Go + Play 3. It is rated higher for sound quality, and saving $192 with the W-King D20 does not make up for the sound-quality gap.

Looking for alternatives? See the complete Portable Bluetooth rankings.

Check Harman Kardon Go + Play 3 price at Amazon ($385) →Check W-King D20 price at AliExpress ($193) →

Specifications Side By Side

Harman Kardon Go + Play 3 W-King D20
Price$385$193
Ranked#3 of 98 in Boombox Size Portable Bluetooth Speakers#39 of 98 in Boombox Size Portable Bluetooth Speakers
AppYes (Harman Kardon One app)Yes (W-King app)
Aux Latency112ms-
Bass Extension (-10dB)35Hz~42Hz
Battery Life8 hours (Manufacturer specified)24 hours (Manufacturer specified)
Built-in MicrophoneYesNo
EQYes (App EQ)Yes (App + button modes)
IP RatingNoneIPX6
Bluetooth Latency120ms-
Maximum SPL103dB (measured by Alan Ross Reviews)112dB (measured by Alan Ross Reviews)
Power InputAC Power brickUSB-C
StereoYesYes
OmnidirectionalNoNo
TWSYesYes
Weight10.4 lbs (4.7 kg)14.3 lbs (6500 g)
BluetoothYesYes
Bluetooth CodecsSBC, AACSBC
Power BankYesYes
Party ModeNoNo
USB PlaybackNoYes
Bluetooth Version5.25.3
Amplifier Power160W RMS200W
Dimensions17.3” x 9.4” x 7.6” (439 x 240 x 192 mm)19.9” x 8.5” x 10.6” (506 x 217 x 270 mm)
Aux InputYesYes
Drivers1x 130mm (5”) subwoofer + 2x 70mm midrange drivers + 2x 20mm tweeters4.5” + 3.5” drivers + 1.2” tweeters
Digital Aux InputNoNo
StrapNo-
MicroSD Playback-Yes
Wireless Microphones-Yes
Check Harman Kardon Go + Play 3 price at Amazon ($385) →Check W-King D20 price at AliExpress ($193) →

More top alternatives to Harman Kardon Go + Play 3:

Prices on this page were last checked October 12, 2026 at 4:13 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 Go + Play 3: $385 Amazon $385 eBay

Harman Kardon Go + Play 3 ranking card

Older model: the Harman Kardon Go + Play 2 (ranked lower, rated 3.9/5). See every Harman Kardon Go + Play generation.

Pros: Warm sound with boosted bass. Deepest bass out of any speaker in this size. Sound is more natural than the Harman Kardon Go + Play 2. An aux input, a built-in microphone, a power bank function, stereo pairing and hidden button combinations for adjusting bass and treble. Measured bass extension of 35Hz (-10dB).

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.

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Full Harman Kardon Go + Play 3 review and specifications →

ReleasedJul 2023 (3 years ago)
Amplifier Power160W RMS
AppYes (Harman Kardon One app)
Aux InputYes
Aux Latency112ms
Bass Extension (-10dB)35Hz
Battery Life8 hours (Manufacturer specified)
BluetoothYes
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
Maximum SPL103dB (measured by Alan Ross Reviews)
OmnidirectionalNo
Party ModeNo
Power BankYes
Power InputAC Power brick
StereoYes
StrapNo
TWSYes
USB PlaybackNo
Weight10.4 lbs (4.7 kg)
Check current price at Amazon ($385) →Search eBay for Harman Kardon Go + Play 3 →

W-King D20: $193 AliExpress $193 eBay

W-King D20 ranking card

Pros: Comes with 2 wireless microphones. Measured bass extension of ~42Hz (-10dB).

Cons: Rising frequency response but upper treble rolled off, 700Hz and 1.2kHz peaks

Full W-King D20 review and specifications →

ReleasedFeb 2024 (2 years ago)
Amplifier Power200W
AppYes (W-King app)
Aux InputYes
Bass Extension (-10dB)~42Hz
Battery Life24 hours (Manufacturer specified)
BluetoothYes
Bluetooth CodecsSBC
Bluetooth Version5.3
Built-in MicrophoneNo
Digital Aux InputNo
Dimensions19.9” x 8.5” x 10.6” (506 x 217 x 270 mm)
Drivers4.5” + 3.5” drivers + 1.2” tweeters
EQYes (App + button modes)
IP RatingIPX6
Maximum SPL112dB (measured by Alan Ross Reviews)
MicroSD PlaybackYes
OmnidirectionalNo
Party ModeNo
Power BankYes
Power InputUSB-C
StereoYes
TWSYes
USB PlaybackYes
Weight14.3 lbs (6500 g)
Wireless MicrophonesYes
Check current price at AliExpress ($193) →Search eBay for W-King D20 →