Short answer: the Harman Kardon Go + Play 3. It ranks #3 of 98 boombox speakers by sound quality (rated 4.4/5) at $385 and is still sold new; the JBL Boombox 2 ranks #43 (rated 3.5/5) and is discontinued, so it is only an option used. The JBL Boombox 2’s replacement, the JBL Boombox 4, is rated 4.0/5 at $549.95.
The Harman Kardon Go + Play 3 is the better-sounding, deeper-bass choice. Warm sound with boosted bass. Its bass reaches about 35Hz before falling 10dB, against 46Hz for the JBL Boombox 2. At 10.4 lbs (4.7 kg) it weighs noticeably less than the JBL Boombox 2 at 13 lbs (5.9 kg). It supports AAC Bluetooth, which the JBL Boombox 2 lacks. The tradeoff: Just a little over half as loud as the higher rated boomboxes.
The JBL Boombox 2 is the louder, longer-running option. 24 hour battery life (default volume); 20+ hours even at 60% volume. Alan Ross Reviews measured it at 108dB at full volume, against 103dB for the Harman Kardon Go + Play 3. It is rated for 24 hours of battery against 8 for the Harman Kardon Go + Play 3. It is rated IPX7, while the Harman Kardon Go + Play 3 has no water resistance. Watch for: Somewhat bass heavy and boomy.
Buy the Harman Kardon Go + Play 3. It is rated higher for sound quality; the JBL Boombox 2 is no longer sold new.
Want more options? Browse the full Portable Bluetooth rankings.
Specifications Side By Side
| Harman Kardon Go + Play 3 | JBL Boombox 2 | |
|---|---|---|
| Price | $385 | $449.99 Discontinued |
| Ranked | #3 of 98 in Boombox Size Portable Bluetooth Speakers | #43 of 98 in Boombox Size Portable Bluetooth Speakers |
| App | Yes (Harman Kardon One app) | No |
| Aux Latency | 112ms | 33ms |
| Bass Extension (-10dB) | 35Hz | 46Hz |
| Battery Life | 8 hours (Manufacturer specified) | 24 hours (Manufacturer specified) |
| Built-in Microphone | Yes | No |
| EQ | Yes (App EQ) | No |
| IP Rating | None | IPX7 |
| Bluetooth Latency | 120ms | 140ms |
| Maximum SPL | 103dB (measured by Alan Ross Reviews) | 108dB (measured by Alan Ross Reviews) |
| Power Input | AC Power brick | AC Power brick |
| Stereo | Yes | Yes |
| Omnidirectional | No | No |
| TWS | Yes | Yes |
| Weight | 10.4 lbs (4.7 kg) | 13 lbs (5.9 kg) |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | SBC, AAC | SBC |
| Power Bank | Yes | Yes (USB-A) |
| Party Mode | No | Yes (PartyBoost up to 100 speakers) |
| USB Playback | No | No |
| Bluetooth Version | 5.2 | 5.1 |
| Amplifier Power | 160W RMS | 160W |
| Dimensions | 17.3” x 9.4” x 7.6” (439 x 240 x 192 mm) | 19.1” x 7.9” x 10.1” (485 x 201 x 257 mm) |
| Aux Input | Yes | Yes |
| Drivers | 1x 130mm (5”) subwoofer + 2x 70mm midrange drivers + 2x 20mm tweeters | 2x 81mm woofers + 2x 20mm tweeters with passive radiators |
| Digital Aux Input | No | No |
| Strap | No | No |
| FM Tuner | - | No |
| Microphone Input | - | No |
| MicroSD Playback | - | No |
Related Speaker Comparisons
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- Harman Kardon Go + Play 3 vs JBL Partybox Encore Essential 2
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Prices on this page were last checked October 12, 2026 at 4:13 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 3: $385 Amazon $385 eBay
Older model: the Harman Kardon Go + Play 2 (ranked lower, rated 3.9/5). See every Harman Kardon Go + Play generation.
Pros: Warm sound with boosted bass. Deepest bass out of any speaker in this size. Sound is more natural than the Harman Kardon Go + Play 2. An aux input, a built-in microphone, a power bank function, stereo pairing and hidden button combinations for adjusting bass and treble. Measured bass extension of 35Hz (-10dB).
Cons: Just a little over half as loud as the higher rated boomboxes. Only 8 hours of battery at medium volume. No water rating.
Setup: Use the hidden EQ modes to adjust the bass up when outside and down when inside. To adjust bass, quickly press the bluetooth and volume down buttons together, the number of light flashes tell you what mode you’re in. To adjust treble, quickly press the volume up and phone buttons at the same time, the number of yellow flashes on the light tell you what mode you are in.
Full Harman Kardon Go + Play 3 review and specifications →
| Released | Jul 2023 (3 years ago) |
|---|---|
| Amplifier Power | 160W RMS |
| App | Yes (Harman Kardon One app) |
| Aux Input | Yes |
| Aux Latency | 112ms |
| Bass Extension (-10dB) | 35Hz |
| Battery Life | 8 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC, AAC |
| Bluetooth Latency | 120ms |
| Bluetooth Version | 5.2 |
| Built-in Microphone | Yes |
| Digital Aux Input | No |
| Dimensions | 17.3” x 9.4” x 7.6” (439 x 240 x 192 mm) |
| Drivers | 1x 130mm (5”) subwoofer + 2x 70mm midrange drivers + 2x 20mm tweeters |
| EQ | Yes (App EQ) |
| IP Rating | None |
| Maximum SPL | 103dB (measured by Alan Ross Reviews) |
| Omnidirectional | No |
| Party Mode | No |
| Power Bank | Yes |
| Power Input | AC Power brick |
| Stereo | Yes |
| Strap | No |
| TWS | Yes |
| USB Playback | No |
| Weight | 10.4 lbs (4.7 kg) |
- Links
- Reviews, Comparisons and Sound Samples
- Oluv Patreon: Harman Kardon go+play 3 - best sounding? More from Oluv’Sone →
- Oluv Patreon: Harman Kardon go+play 3 vs Tribit Stormbox Blast - outdoor soundtest
- Oluv Patreon: Harman Kardon go+play 3 vs JBL Xtreme 4 - first impressions
- Oluv Patreon: Harman Kardon go+play 3 vs Earfun UBoom X
- Alan Ross Reviews: Harman Kardon Go + Play 3 hidden eq modes - world has gone crazy! 🤣 More from alanrossreviews →
- Alan Ross Reviews: Harman Kardon Go+ Play 3 vs Go Play 2, the holy grail has arrived? ✔
- Alan Ross Reviews: JBL Distortion Fest vs my favorite speaker today! I wasn’t expecting this!
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- Dominik Reviews: Tronsmart Fiitune X30 vs HK Go + Play 3 - No chance? - Sound Test More from Dominik Reviews →
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- Mateusz Cholewa: BOGASING S8 Pro Max „HiFi” 🎶🧐🆚 Harman Kardon Go Play 3 „HiFi”🔊 More from Mateusz Cholewa →
- Mateusz Cholewa: LOEWE WE Hear Pro SUPER STEREO vs HiFi Harman Kardon Go Plus Play 3
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- Jagist reviews: Bugani Brief Pro Vs Harmon Kardon Go Plus Play 3!!! More from Jagistreviews →
- Jagist reviews: Bugani Boost Max Vs Harmon Kardon Go Plus Play 3!!! 😁😁😁
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- Head-to-Head Comparisons
- Harman Kardon Go + Play 3 vs JBL Partybox Encore 2
- Harman Kardon Go + Play 3 vs Tribit Stormbox Blast
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- Harman Kardon Go + Play 3 vs JBL Partybox Encore Essential 2
- Harman Kardon Go + Play 3 vs JBL Partybox Encore
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JBL Boombox 2: $449.99 Discontinued Amazon $449.99 eBay
Newer model: the JBL Boombox 4, ranked higher, rated 4/5, released Jul 2025.
Older model: the JBL Boombox (ranked lower, rated 2.9/5). See every JBL Boombox generation.
Pros: 24 hour battery life (default volume); 20+ hours even at 60% volume. IPX7 rated. Doubles as a power bank. Bluetooth 5.1 with PartyBoost (up to 100 speakers). Reaches 101dB. Measured bass extension of 46Hz (-10dB).
Cons: Somewhat bass heavy and boomy. Discontinued.
Full JBL Boombox 2 review and specifications →
| Released | Apr 2020 (6 years ago) |
|---|---|
| Amplifier Power | 160W |
| App | No |
| Aux Input | Yes |
| Aux Latency | 33ms |
| Bass Extension (-10dB) | 46Hz |
| Battery Life | 24 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC |
| Bluetooth Latency | 140ms |
| Bluetooth Version | 5.1 |
| Built-in Microphone | No |
| Digital Aux Input | No |
| Dimensions | 19.1” x 7.9” x 10.1” (485 x 201 x 257 mm) |
| Drivers | 2x 81mm woofers + 2x 20mm tweeters with passive radiators |
| EQ | No |
| FM Tuner | No |
| IP Rating | IPX7 |
| Maximum SPL | 108dB (measured by Alan Ross Reviews) |
| MicroSD Playback | No |
| Microphone Input | No |
| Omnidirectional | No |
| Party Mode | Yes (PartyBoost up to 100 speakers) |
| Power Bank | Yes (USB-A) |
| Power Input | AC Power brick |
| Stereo | Yes |
| Strap | No |
| TWS | Yes |
| USB Playback | No |
| Weight | 13 lbs (5.9 kg) |
- Links
- Reviews, Comparisons and Sound Samples
- Alan Ross Reviews: JBL Boombox 3 review vs JBL Boombox 2 a subwoofer and a 3 way equals heaven? 💋 More from alanrossreviews →
- Alan Ross Reviews: JBL Boombox 2 vs Onyx Studio 7 big bass battle 💋
- Alan Ross Reviews: Tribit Stormbox Blast vs JBL Boombox 2 big bass boombox speakers 💕
- Alan Ross Reviews: JBL Boombox 2 bass monster or the mature Harman Kardon Go+ Play 2 mini for bass?? 💥
- Mateusz Cholewa: 2 x 🔊Teufel Boomster 2021🎵 vs JBL Boombox 2 AC🔌 Power Test Audio🎧. More from Mateusz Cholewa →
- YARNZO Tech: Outdoor sound test between zealot s98 and jbl boombox2 👂🎧🔊 More from YARNZO Tech →
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