Harman Kardon Go + Play 2 vs Teufel Boomster 2021

Last updated: August 19, 2026

Short answer: the Harman Kardon Go + Play 2. It ranks #18 of 73 boombox speakers by sound quality; the Teufel Boomster 2021 ranks #33.

What the Harman Kardon Go + Play 2 offers: Warm sound with boosted bass. Watch for: Not as loud as others. No water rating.

On the Teufel Boomster 2021 side: Pretty balanced sound, slightly warm. Set against that: Not as deep of bass as above ranked speakers. Boosted mid bass compensating for the lack of bass extension.

Buy the Harman Kardon Go + Play 2 if sound quality matters more than the price. Buy the Teufel Boomster 2021 if the price matters more than sound quality.

If battery life is a priority, the Teufel Boomster 2021 is rated for 18 hours versus 8 hours for the Harman Kardon Go + Play 2.

If water resistance matters to you, the Teufel Boomster 2021 at IPX7 (brief submersion) holds up far better than the Harman Kardon Go + Play 2 at no water resistance.

Harman Kardon Go + Play 2 vs Teufel Boomster 2021

Specifications Side By Side

Harman Kardon Go + Play 2 Teufel Boomster 2021
Price$350 Discontinued€250 Discontinued
Ranked#18 of 73 in Boombox Size Portable Bluetooth Speakers#33 of 73 in Boombox Size Portable Bluetooth Speakers
Aux Latency0ms-
Bass Extension (-10dB)40Hz-
Battery Life8 hours (Manufacturer specified)18 hours (Manufacturer specified)
IP RatingNoneIPX7
Bluetooth Latency33ms-
Max Volume99dB-
Party ModeYes (Wireless Dual Sound)No
Power InputAC Power brickUSB-C
StereoYesYes
OmnidirectionalNoNo
Bluetooth CodecsSBCSBC
AppNoNo
EQNoNo
TWSNoYes
Power BankNoNo
USB PlaybackNoNo
Built in MicrophoneYesNo
Output Power100W AC / 30W battery42W RMS
Dimensions20" x 9" x 9.5" (508 x 228.6 x 241.3 mm)14.6" x 7.1" x 5.8" (370 x 180 x 148 mm)
Drivers2x 90mm (3.5") woofers (front and rear firing) + 2x 20mm tweeters1x 110mm (4.3") woofer + 2x 65mm midrange drivers + 2x 20mm tweeters
Weight5.3 lbs / 2.4 kg8.3 lbs / 3.75 kg
DiscontinuedYesYes
Digital Aux InputNoNo
Aux Input-Yes
FM Tuner-Yes

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
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

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Teufel Boomster 2021: €250 Discontinued

Teufel Boomster 2021 ranking card

Pros: Pretty balanced sound, slightly warm

Cons: Not as deep of bass as above ranked speakers. Boosted mid bass compensating for the lack of bass extension. Discontinued.

AppNo
Aux InputYes
Battery Life18 hours (Manufacturer specified)
Bluetooth CodecsSBC
Built in MicrophoneNo
Digital Aux InputNo
Dimensions14.6" x 7.1" x 5.8" (370 x 180 x 148 mm)
DiscontinuedYes
Drivers1x 110mm (4.3") woofer + 2x 65mm midrange drivers + 2x 20mm tweeters
EQNo
FM TunerYes
IP RatingIPX7
OmnidirectionalNo
Output Power42W RMS
Party ModeNo
Power BankNo
Power InputUSB-C
StereoYes
TWSYes
USB PlaybackNo
Weight8.3 lbs / 3.75 kg

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