Short answer: the Harman Kardon Go + Play 3, if you are buying new. The Harman Kardon Go + Play 2 ranks higher than the Turtlebox Grande (#23 vs #71 of 91 boombox speakers) but is discontinued; its replacement, the Harman Kardon Go + Play 3, is rated 4.4/5 at $385 and is still sold new.
The Turtlebox Grande is the longer-running, tougher choice. 10-inch woofer. It is rated for 25 hours of battery against 8 for the Harman Kardon Go + Play 2. It is rated IP67, while the Harman Kardon Go + Play 2 has no water resistance. The catch: In YouTube sound samples it sounds only okay, and bass is shallow for a 10 inch woofer, only down 10dB at about 55Hz.
The Harman Kardon Go + Play 2 is the better-sounding, deeper-bass pick. 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. Its bass reaches about 40Hz before falling 10dB, against 55Hz for the Turtlebox Grande. At 5.3 lbs (2.4 kg) it weighs much less than the Turtlebox Grande at 18.8 lbs (8.53 kg). The catch: Not as loud as others.
Buy the Harman Kardon Go + Play 3, the replacement for the discontinued Harman Kardon Go + Play 2; it is rated higher for sound quality than the Turtlebox Grande.
Looking for alternatives? See the complete Portable Bluetooth rankings.
Specifications Side By Side
| Turtlebox Grande | Harman Kardon Go + Play 2 | |
|---|---|---|
| Price | $730.00 | $350 Discontinued |
| Ranked | #71 of 91 in Boombox Size Portable Bluetooth Speakers | #23 of 91 in Boombox Size Portable Bluetooth Speakers |
| Aux Input | Yes | Yes |
| Bass Extension (-10dB) | ~55Hz | 40Hz |
| Battery Life | 25 hours (Manufacturer specified) | 8 hours (Manufacturer specified) |
| Built-in Microphone | Yes | Yes |
| IP Rating | IP67 | None |
| MicroSD Playback | Yes | - |
| Party Mode | Yes (Turtlebox Party Mode) | Yes (Wireless Dual Sound) |
| Power Input | DC Barrel Connector (20V/3A) | AC Power brick |
| Stereo | Yes | Yes |
| Omnidirectional | No | No |
| TWS | Yes | No |
| Weight | 18.8 lbs (8.53 kg) | 5.3 lbs (2.4 kg) |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | SBC | SBC |
| App | No | No |
| EQ | No | No |
| Power Bank | Yes (USB-C) | No |
| USB Playback | No | No |
| Bluetooth Version | 5.4 | 4.1 |
| Amplifier Power | 86W | 100W AC / 30W battery |
| Dimensions | 14” x 8.4” x 11.5” (355.6 x 213.4 x 292.1 mm) | 20” x 9” x 9.5” (508 x 228.6 x 241.3 mm) |
| Drivers | 1x 10” (254mm) woofer + 1x 1.25” (32mm) titanium tweeter | 2x 90mm (3.5”) woofers (front and rear firing) + 2x 20mm tweeters |
| Digital Aux Input | No | No |
| Strap | No | No |
| Aux Latency | - | 0ms |
| Bluetooth Latency | - | 33ms |
| Maximum SPL | - | 99dB (measured by Alan Ross Reviews) |
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 9, 2026 at 8:01 AM 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
Turtlebox Grande: $730.00 Amazon eBay
Same family: the Turtlebox Cub (smaller model, rated 3/5), the Turtlebox Ranger (smaller model, rated 3.5/5) and the Turtlebox Gen 3 (smaller model, ranked lower, rated 2.1/5). See every Turtlebox generation.
Pros: 10-inch woofer. IP67 submersible shell with crush-proof ABS exterior. 158Wh battery provides ~3 days of playback. Bluetooth 5.4, party mode (100+ speakers). Measured bass extension of ~55Hz (-10dB).
Cons: In YouTube sound samples it sounds only okay, and bass is shallow for a 10 inch woofer, only down 10dB at about 55Hz. It is rated at just 86W, and like the smaller Turtleboxes it won’t reach its claimed 126dB at a standard one meter distance. Expensive for what it delivers. It charges only from its own barrel plug adapter, not USB-C.
Full Turtlebox Grande review and specifications →
| Released | Jan 2025 (1 year ago) |
|---|---|
| Amplifier Power | 86W |
| App | No |
| Aux Input | Yes |
| Bass Extension (-10dB) | ~55Hz |
| Battery Life | 25 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC |
| Bluetooth Version | 5.4 |
| Built-in Microphone | Yes |
| Digital Aux Input | No |
| Dimensions | 14” x 8.4” x 11.5” (355.6 x 213.4 x 292.1 mm) |
| Drivers | 1x 10” (254mm) woofer + 1x 1.25” (32mm) titanium tweeter |
| EQ | No |
| IP Rating | IP67 |
| MicroSD Playback | Yes |
| Omnidirectional | No |
| Party Mode | Yes (Turtlebox Party Mode) |
| Power Bank | Yes (USB-C) |
| Power Input | DC Barrel Connector (20V/3A) |
| Stereo | Yes |
| Strap | No |
| TWS | Yes |
| USB Playback | No |
| Weight | 18.8 lbs (8.53 kg) |
- Links
- Reviews, Comparisons and Sound Samples
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Harman Kardon Go + Play 2: $350 Discontinued eBay
Newer model: the Harman Kardon Go + Play 3, ranked higher, rated 4.4/5, released Jul 2023. It adds power bank charging, app control, adjustable EQ and stereo pairing, but drops party mode. See every Harman Kardon Go + Play generation.
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 →
| Released | Jul 2019 (7 years ago) |
|---|---|
| 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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