Short answer: the Harman Kardon Go + Play 2 for warmth, the Teufel Boomster NG (2017) for neutrality. The Go + Play 2 is warm with boosted bass but not as loud as others. The Boomster NG sounds pretty neutral, though its bass is not as deep as others in the category, so neither is the obvious all-rounder.
Buy the Harman Kardon Go + Play 2 only if you find one used in good condition; both are discontinued, and it is the better rated of the two. For a new speaker, start with the Tribit Stormbox Blast instead.
Battery life favors the Teufel Boomster NG (2017): rated for 18 hours against 8 hours for the Harman Kardon Go + Play 2.
Looking for alternatives? See the complete Portable Bluetooth rankings.
Specifications Side By Side
| Harman Kardon Go + Play 2 | Teufel Boomster NG (2017) | |
|---|---|---|
| Price | $350 Discontinued | €99 Discontinued |
| Ranked | #23 of 91 in Boombox Size Portable Bluetooth Speakers | #53 of 91 in Boombox Size Portable Bluetooth Speakers |
| Aux Latency | 0ms | - |
| Bass Extension (-10dB) | 40Hz | 47Hz |
| Battery Life | 8 hours (Manufacturer specified) | 18 hours (Manufacturer specified) |
| IP Rating | None | None |
| Bluetooth Latency | 33ms | - |
| Maximum SPL | 99dB (measured by Alan Ross Reviews) | - |
| 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 | No |
| Power Bank | No | Yes (USB-A) |
| USB Playback | No | No |
| Built-in Microphone | Yes | No |
| Amplifier Power | 100W AC / 30W battery | 38W RMS |
| Dimensions | 20” x 9” x 9.5” (508 x 228.6 x 241.3 mm) | 5.7” x 14.6” x 7.1” (145 x 370 x 180 mm) |
| Drivers | 2x 90mm (3.5”) woofers (front and rear firing) + 2x 20mm tweeters | 1x 90mm woofer + 2x 65mm midrange drivers + 2x 20mm tweeters |
| Weight | 5.3 lbs (2.4 kg) | 7.5 lbs (3.4 kg) |
| Digital Aux Input | No | No |
| Aux Input | Yes | Yes |
| Bluetooth Version | 4.1 | 4.0 |
| Strap | No | - |
| Removable Battery | - | Yes |
Related Speaker Comparisons
More worthwhile head-to-heads for Harman Kardon Go + Play 2:
- 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 October 4, 2026 at 9:58 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 →
- Alan Ross Reviews: JBL Boombox 2 bass monster or the mature Harman Kardon Go+ Play 2 mini for bass?? 💥
- 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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- Harman Kardon Go + Play 2 vs JBL Boombox 3
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Teufel Boomster NG (2017): €99 Discontinued eBay
Newer model: the Teufel Boomster 4, ranked higher, rated 3.4/5.
Pros: Teufel Boomster NG (2017) uses 1x 90mm woofer + 2x 65mm midrange drivers + 2x 20mm tweeters. Its 3.4 kg, claimed 18 hours (Manufacturer specified) battery life and stereo playback make it a practical option for its intended room or portable use. The battery is removable. Measured bass extension of 47Hz (-10dB).
Cons: Bass is limited by its 47Hz specification. There is no companion app. No EQ adjustment. The bass port can make noise, and there is no water rating. Discontinued.
Full Teufel Boomster NG (2017) review and specifications →
| Amplifier Power | 38W RMS |
|---|---|
| App | No |
| Aux Input | Yes |
| Bass Extension (-10dB) | 47Hz |
| Battery Life | 18 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC |
| Bluetooth Version | 4.0 |
| Built-in Microphone | No |
| Digital Aux Input | No |
| Dimensions | 5.7” x 14.6” x 7.1” (145 x 370 x 180 mm) |
| Drivers | 1x 90mm woofer + 2x 65mm midrange drivers + 2x 20mm tweeters |
| EQ | No |
| IP Rating | None |
| Omnidirectional | No |
| Party Mode | No |
| Power Bank | Yes (USB-A) |
| Power Input | USB-C |
| Removable Battery | Yes |
| Stereo | Yes |
| TWS | No |
| USB Playback | No |
| Weight | 7.5 lbs (3.4 kg) |
- Reviews, Comparisons and Sound Samples
- No independent measurement review is linked for this model; it is ranked from hands-on listening and comparison against similarly priced speakers.
- Head-to-Head Comparisons
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