Short answer: the Harman Kardon Go + Play 2. It ranks #23 of 89 boombox speakers by sound quality, rated 3.9/5, at $350. The Bumpboxx Flare 6 ranks #71, rated 2.6/5, at $300, $50 cheaper, a saving that is not big enough to make up the sound-quality gap.
Why pick the Harman Kardon Go + Play 2: At 2.4 kg, Harman Kardon Go + Play 2 combines 2x 90mm (3.5”) woofers (front and rear firing) + 2x 20mm tweeters with Bluetooth. The catch: Bass is limited by its 40Hz specification.
What the Bumpboxx Flare 6 does well: At 5.9 kg, Bumpboxx Flare 6 combines 6” woofer + tweeters with Bluetooth. The tradeoff: There is no companion app.
Worth knowing: the Harman Kardon Go + Play 2 is discontinued, though it still ranks #23 of 89 boombox speakers by sound quality, so a used unit beats most of what is still sold new.
Buy the Harman Kardon Go + Play 2. It is rated higher for sound quality, and saving $50 with the Bumpboxx Flare 6 does not make up for the sound-quality gap.
If water resistance matters to you, the Bumpboxx Flare 6 at IPX6 (powerful water jets) holds up far better than the Harman Kardon Go + Play 2 at no water resistance.
Looking for alternatives? See the complete Portable Bluetooth rankings.
Specifications Side By Side
| Harman Kardon Go + Play 2 | Bumpboxx Flare 6 | |
|---|---|---|
| Price | $350 Discontinued | $300 Discontinued |
| Ranked | #23 of 89 in Boombox Size Portable Bluetooth Speakers | #71 of 89 in Boombox Size Portable Bluetooth Speakers |
| Aux Latency | 0ms | - |
| Bass Extension (-10dB) | 40Hz | - |
| Battery Life | 8 hours (Manufacturer specified) | 12 hours (Manufacturer specified) |
| IP Rating | None | IPX6 |
| Bluetooth Latency | 33ms | - |
| Maximum SPL | 99dB (measured by Alan Ross Reviews) | 115dB (Manufacturer specified) |
| Party Mode | Yes (Wireless Dual Sound) | No |
| Power Input | AC Power brick | USB-C |
| Stereo | Yes | Yes |
| Omnidirectional | No | No |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | SBC | SBC |
| App | No | No |
| EQ | No | No |
| TWS | No | Yes |
| Power Bank | No | No |
| USB Playback | No | No |
| Built-in Microphone | Yes | No |
| Amplifier Power | 100W AC / 30W battery | 150W |
| Dimensions | 20” x 9” x 9.5” (508 x 228.6 x 241.3 mm) | 24” x 6” x 14” (609.6 x 152.4 x 355.6 mm) |
| Drivers | 2x 90mm (3.5”) woofers (front and rear firing) + 2x 20mm tweeters | 6” woofer + tweeters |
| Weight | 5.3 lbs (2.4 kg) | 13 lbs (5.9 kg) |
| Digital Aux Input | No | No |
| Aux Input | Yes | Yes |
| Bluetooth Version | 4.1 | - |
| Strap | No | - |
| FM Tuner | - | Yes |
| Lights | - | Yes |
Related Speaker Comparisons
How Harman Kardon Go + Play 2 compares with other leading options:
- Tribit Stormbox Blast vs Harman Kardon Go + Play 2
- Harman Kardon Go + Play 2 vs Harman Kardon Go + Play 3
- JBL Partybox Encore 2 vs Harman Kardon Go + Play 2
- JBL Partybox Encore Essential 2 vs Harman Kardon Go + Play 2
- JBL Partybox Encore vs Harman Kardon Go + Play 2
Prices on this page were last checked September 29, 2026 at 3:43 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 2: $350 Discontinued eBay
Newer model: the Harman Kardon Go + Play 3, ranked higher, rated 4.4/5.
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. Not as loud as others. 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 | Yes |
| 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) |
| 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 |
| Strap | No |
| TWS | No |
| USB Playback | No |
| Weight | 5.3 lbs (2.4 kg) |
- Links
- Reviews, Comparisons and Sound Samples
- Alan Ross Reviews: Harman Kardon Go+ Play 3 vs Go Play 2, the holy grail has arrived? ✔ More from alanrossreviews →
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- Alan Ross Reviews: Tribit Stormbox Blast or Harman Kardon Go+ Play 2 Mini by an old bloke!
- Alan Ross Reviews: Harman Kardon Go+ Play 2 mini or Onyx Studio 6 - best speaker for bass?
- Alan Ross Reviews: Soundcore Motion Boom Plus vs Harman Kardon Go+ Play 2 mini - party vs HiFi
- Alan Ross Reviews: Bag of Riddim vs Harman Kardon Go+ Play 2 - boom boom in da room! 🥳
- Alan Ross Reviews: HK Go+ Play vs Soundcore Motion Boom - biggest bass battle ever!!!!!!!!!!!!
- Head-to-Head Comparisons
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- See all 49 comparisons
Bumpboxx Flare 6: $300 Discontinued eBay
Pros: At 5.9 kg, Bumpboxx Flare 6 combines 6” woofer + tweeters with Bluetooth. Claimed 12 hours (manufacturer specified) battery life, ipx6 protection, up to 115db and stereo playback make its feature set practical for its intended room or portable use.
Cons: There is no companion app. No EQ adjustment. Discontinued.
Full Bumpboxx Flare 6 review and specifications →
| Amplifier Power | 150W |
|---|---|
| App | No |
| Aux Input | Yes |
| Battery Life | 12 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC |
| Built-in Microphone | No |
| Digital Aux Input | No |
| Dimensions | 24” x 6” x 14” (609.6 x 152.4 x 355.6 mm) |
| Drivers | 6” woofer + tweeters |
| EQ | No |
| FM Tuner | Yes |
| IP Rating | IPX6 |
| Lights | Yes |
| Maximum SPL | 115dB (Manufacturer specified) |
| Omnidirectional | No |
| Party Mode | No |
| Power Bank | No |
| Power Input | USB-C |
| Stereo | Yes |
| TWS | Yes |
| USB Playback | No |
| Weight | 13 lbs (5.9 kg) |
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons