Short answer: the Harman Kardon Go + Play 2. It ranks #18 of 73 boombox speakers by sound quality at $350; the Turtlebox Gen 2 ranks #69 and costs $400, so there is not much of a tradeoff to weigh.
What the Harman Kardon Go + Play 2 offers: Warm sound with boosted bass. Watch for: Not as loud as others.
What the Turtlebox Gen 2 offers: Waterproof and crushproof, loud with punchy bass. 25 hour battery life (6 hours at full volume; 3 hour charge time). Watch for: Sounds basically identical to the original and the Gen 3: each generation mainly added features, not sound quality.
Buy the Harman Kardon Go + Play 2. It ranks higher for sound quality than the Turtlebox Gen 2 and costs less, so there is no real case for the other one.
If sound quality matters at all to you, skip the Turtlebox Gen 2. It ranks near the bottom of the 73 boombox speakers, so look higher up the list instead.
If battery life is a priority, the Turtlebox Gen 2 is rated for 25 hours versus 8 hours for the Harman Kardon Go + Play 2.
If water resistance matters to you, the Turtlebox Gen 2 at IP67 (brief submersion) holds up far better than the Harman Kardon Go + Play 2 at no water resistance.

Specifications Side By Side
| Harman Kardon Go + Play 2 | Turtlebox Gen 2 | |
|---|---|---|
| Price | $350 Discontinued | $400 Discontinued |
| Ranked | #18 of 73 in Boombox Size Portable Bluetooth Speakers | #69 of 73 in Boombox Size Portable Bluetooth Speakers |
| Aux Latency | 0ms | - |
| Bass Extension (-10dB) | 40Hz | ~65Hz |
| Battery Life | 8 hours (Manufacturer specified) | 25 hours (Manufacturer specified) |
| IP Rating | None | IP67 |
| Bluetooth Latency | 33ms | - |
| Max Volume | 99dB | - |
| Party Mode | Yes (Wireless Dual Sound) | No |
| Power Input | AC Power brick | USB-C |
| Stereo | Yes | Yes |
| Bluetooth Codecs | SBC | SBC |
| App | No | No |
| EQ | No | No |
| TWS | No | Yes |
| Power Bank | No | Yes (USB-C) |
| USB Playback | No | No |
| Built in Microphone | Yes | No |
| Output Power | 100W AC / 30W battery | 50W |
| Dimensions | 20" x 9" x 9.5" (508 x 228.6 x 241.3 mm) | 12" x 7" x 8.7" (305 x 178 x 222 mm) |
| Drivers | 2x 90mm (3.5") woofers (front and rear firing) + 2x 20mm tweeters | 1x 6x9" (152x228mm) woofer + 1x 1" (25mm) tweeter |
| Weight | 5.3 lbs / 2.4 kg | 10 lbs / 4.54 kg |
| Discontinued | Yes | Yes |
| Digital Aux Input | No | No |
| Aux Input | - | Yes |
| MicroSD Playback | - | Yes |
| Bluetooth Version | - | 5.0 |
Related Speaker Comparisons
More useful head-to-heads from the same speaker class:
- JBL Boombox 4 vs Zealot S89
- JBL Boombox 4 vs JBL Partybox Encore Essential 2
- Turtlebox Gen 3 vs Turtlebox
- Harman Kardon Go + Play 2 vs Demerbox DB2
- Harman Kardon Go + Play 2 vs Sony SRS-XG500
The Two Speakers In Full
Harman Kardon Go + Play 2: $350 Discontinued
Pros: Warm sound with boosted bass.
Cons: Not as loud as others. No water rating. Discontinued.
Full Harman Kardon Go + Play 2 review and specifications →
| App | No |
|---|---|
| Aux Latency | 0ms |
| Bass Extension (-10dB) | 40Hz |
| Battery Life | 8 hours (Manufacturer specified) |
| Bluetooth Codecs | SBC |
| Bluetooth Latency | 33ms |
| Built in Microphone | Yes |
| Digital Aux Input | No |
| Dimensions | 20" x 9" x 9.5" (508 x 228.6 x 241.3 mm) |
| Discontinued | Yes |
| Drivers | 2x 90mm (3.5") woofers (front and rear firing) + 2x 20mm tweeters |
| EQ | No |
| IP Rating | None |
| Max Volume | 99dB |
| Output Power | 100W AC / 30W battery |
| Party Mode | Yes (Wireless Dual Sound) |
| Power Bank | No |
| Power Input | AC Power brick |
| Stereo | Yes |
| TWS | No |
| USB Playback | No |
| Weight | 5.3 lbs / 2.4 kg |
As an eBay Partner, we may be compensated if you make a purchase.
- Links
- Reviews, Comparisons and Sound Samples
- Alan Ross Reviews: Harman Kardon Go+ Play 3 vs Go Play 2, the holy grail has arrived? ✔
- 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!!!!!!!!!!!!
- Reddit Search for Harman Kardon Go + Play 2 Review
- Head-to-Head Comparisons
- Harman Kardon Go + Play 2 vs JBL Boombox 2
- Harman Kardon Go + Play 2 vs JBL Authentics 300
- Harman Kardon Go + Play 2 vs B&O Beolit 20
- Harman Kardon Go + Play 2 vs Harman Kardon Go + Play 3
- Harman Kardon Go + Play 2 vs Sony SRS-XG500
- Harman Kardon Go + Play 2 vs Soundcore Motion Boom+
- Harman Kardon Go + Play 2 vs Demerbox DB2
- Harman Kardon Go + Play 2 vs Bumpboxx Flare 6
- See all 10 comparisons
Turtlebox Gen 2: $400 Discontinued
Pros: Waterproof and crushproof, loud with punchy bass. 25 hour battery life (6 hours at full volume; 3 hour charge time). USB-C charging and USB-C output charges other devices, an upgrade over the original’s AC power brick. Pairs with a second unit for stereo.
Cons: Sounds basically identical to the original and the Gen 3: each generation mainly added features, not sound quality. They pretty much lie about all their specs and sound horrible in all youtube sound samples. Only 50w (from their indigogo page), will never hit 120db at a reasonable measuring distance. Putting your db meter right against the speaker doesn’t count, 1 meter distance is the standard. Barely any bass. Rattles at high volume. Looking at it, it appears to be a generic car 2-way 6x9 speaker in a plastic box. Discontinued.
Full Turtlebox Gen 2 review and specifications →
| App | No |
|---|---|
| Aux Input | Yes |
| Bass Extension (-10dB) | ~65Hz |
| Battery Life | 25 hours (Manufacturer specified) |
| Bluetooth Codecs | SBC |
| Bluetooth Version | 5.0 |
| Built in Microphone | No |
| Digital Aux Input | No |
| Dimensions | 12" x 7" x 8.7" (305 x 178 x 222 mm) |
| Discontinued | Yes |
| Drivers | 1x 6x9" (152x228mm) woofer + 1x 1" (25mm) tweeter |
| EQ | No |
| IP Rating | IP67 |
| MicroSD Playback | Yes |
| Output Power | 50W |
| Party Mode | No |
| Power Bank | Yes (USB-C) |
| Power Input | USB-C |
| Stereo | Yes |
| TWS | Yes |
| USB Playback | No |
| Weight | 10 lbs / 4.54 kg |
As an eBay Partner, we may be compensated if you make a purchase.
- Links
- Reviews, Comparisons and Sound Samples
- Outeraudio: Turtlebox vs EcoXgear Defender Sound Comparison
- Risk Profile: TurtleBox Demo Risk Profile Podcast
- Everyday Man: Soundboks Go Vs Turttlebox Vs EcoXGear Defender
- Turtlebox Audio: Turtlebox Gen 2 - Live Sound Demo
- KosherTech: Soundcore Rave VS Turtlebox- (Sound Test Only)🎧
- Reddit Search for Turtlebox Gen 2 Review
- Head-to-Head Comparisons

