Harman Kardon Go + Play 2 vs Soundcore Motion Boom+

Last updated: August 15, 2026

Short answer: the Harman Kardon Go + Play 2 for better sound quality, the Soundcore Motion Boom+ for the lower price. The Harman Kardon Go + Play 2 ranks #18 of 73 boombox speakers at $350. The Soundcore Motion Boom+ ranks #47 at $140, $210 cheaper.

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

What the Soundcore Motion Boom+ offers: 80W stereo from dual 30W woofers + dual 10W tweeters with titanium drivers for treble clarity. 13,400mAh battery for 20 hours (12-15 at high volume). Watch for: Default presets are all warm sounding with rolled off treble.

Buy the Harman Kardon Go + Play 2 if sound quality matters more than the price. Buy the Soundcore Motion Boom+ if the price matters more than sound quality.

If battery life is a priority, the Soundcore Motion Boom+ is rated for 20 hours versus 8 hours for the Harman Kardon Go + Play 2.

If water resistance matters to you, the Soundcore Motion Boom+ at IP67 (brief submersion) holds up far better than the Harman Kardon Go + Play 2 at no water resistance.

Harman Kardon Go + Play 2 vs Soundcore Motion Boom+

Specifications Side By Side

Harman Kardon Go + Play 2 Soundcore Motion Boom+
Price$350 Discontinued$140 after $40 coupon, Discontinued
Ranked#18 of 73 in Boombox Size Portable Bluetooth Speakers#47 of 73 in Boombox Size Portable Bluetooth Speakers
Aux Latency0ms17ms
Bass Extension (-10dB)40Hz52Hz
Battery Life8 hours (Manufacturer specified)20 hours (Manufacturer specified)
IP RatingNoneIP67
Bluetooth Latency33ms33ms
Max Volume99dB108dB
Party ModeYes (Wireless Dual Sound)Yes (PartyCast up to 100 speakers)
Power InputAC Power brickUSB-C
StereoYesYes
Bluetooth CodecsSBCSBC
AppNoYes (Soundcore app)
EQNoYes (App EQ)
TWSNoYes
Power BankNoYes (USB-A, 5V/2.1A)
USB PlaybackNoNo
Built in MicrophoneYesNo
Output Power100W AC / 30W battery80W
Dimensions20" x 9" x 9.5" (508 x 228.6 x 241.3 mm)15.1" x 5.1" x 7.7" (384 x 130 x 196 mm)
Drivers2x 90mm (3.5") woofers (front and rear firing) + 2x 20mm tweeters30W: Dual drivers
Weight5.3 lbs / 2.4 kg5.3 lbs / 2.4 kg
DiscontinuedYesYes
Digital Aux InputNoNo
Aux Input-Yes
Bluetooth Version-5.3

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.

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
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

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Soundcore Motion Boom+: $140 after $40 coupon, Discontinued Amazon

Soundcore Motion Boom+ ranking card

Pros: 80W stereo from dual 30W woofers + dual 10W tweeters with titanium drivers for treble clarity. 13,400mAh battery for 20 hours (12-15 at high volume). IP67 waterproof, floats, rugged build inspires confidence. Bluetooth 5.3 multipoint pairing, Soundcore app EQ, PartyCast 2.0 mode. USB-C input, USB-A output for powerbank.

Cons: Default presets are all warm sounding with rolled off treble. Will need a custom EQ to get closer to neutral. A shrill sounding 6khz peak comes out when volume is above about 60%. Not much deeper bass than a Motion Boom and a lot less deep bass than other speakers in the class. Discontinued.

AppYes (Soundcore app)
Aux InputYes
Aux Latency17ms
Bass Extension (-10dB)52Hz
Battery Life20 hours (Manufacturer specified)
Bluetooth CodecsSBC
Bluetooth Latency33ms
Bluetooth Version5.3
Built in MicrophoneNo
Digital Aux InputNo
Dimensions15.1" x 5.1" x 7.7" (384 x 130 x 196 mm)
DiscontinuedYes
Drivers30W: Dual drivers
EQYes (App EQ)
IP RatingIP67
Max Volume108dB
Output Power80W
Party ModeYes (PartyCast up to 100 speakers)
Power BankYes (USB-A, 5V/2.1A)
Power InputUSB-C
StereoYes
TWSYes
USB PlaybackNo
Weight5.3 lbs / 2.4 kg

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