Short answer: the Harman Kardon Go + Play 3, if you are buying new. The Harman Kardon Go + Play 2 ranks higher than the Sony ULT Field 7 (#23 vs #59 of 98 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 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 52Hz for the Sony ULT Field 7. At 5.3 lbs (2.4 kg) it weighs much less than the Sony ULT Field 7 at 13.9 lbs (6.3 kg). The tradeoff: Not as loud as others.
The Sony ULT Field 7 is the longer-running, tougher option. It is rated for 30 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. It supports LDAC Bluetooth, which the Harman Kardon Go + Play 2 lacks. Watch for: A peak around 8kHz, and bass does not reach as deep as the top-ranked speakers.
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 Sony ULT Field 7.
Want more options? Browse the full Portable Bluetooth rankings.
Specifications Side By Side
| Harman Kardon Go + Play 2 | Sony ULT Field 7 | |
|---|---|---|
| Price | $350 Discontinued | $448.99 |
| Ranked | #23 of 98 in Boombox Size Portable Bluetooth Speakers | #59 of 98 in Boombox Size Portable Bluetooth Speakers |
| Aux Latency | 0ms | - |
| Bass Extension (-10dB) | 40Hz | ~52Hz |
| Battery Life | 8 hours (Manufacturer specified) | 30 hours (Manufacturer specified) |
| IP Rating | None | IP67 |
| Bluetooth Latency | 33ms | - |
| Maximum SPL | 99dB (measured by Alan Ross Reviews) | - |
| Party Mode | Yes (Wireless Dual Sound) | Yes (Party Connect up to 100 speakers) |
| Power Input | AC Power brick | AC Power cord |
| Stereo | Yes | Yes |
| Omnidirectional | No | No |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | SBC | SBC, AAC, LDAC |
| App | No | No |
| EQ | No | Yes (App + ULT button) |
| TWS | No | Yes |
| Power Bank | No | Yes (USB-A, 5V/1.5A) |
| USB Playback | No | Yes |
| Built-in Microphone | Yes | Yes |
| Amplifier Power | 100W AC / 30W battery | 100W |
| Dimensions | 20” x 9” x 9.5” (508 x 228.6 x 241.3 mm) | 20.2” x 8.8” x 8.7” (512 x 224 x 222 mm) |
| Drivers | 2x 90mm (3.5”) woofers (front and rear firing) + 2x 20mm tweeters | 2x 114mm x 114mm X-Balanced woofers + 2x 46mm (1.9”) tweeters |
| Weight | 5.3 lbs (2.4 kg) | 13.9 lbs (6.3 kg) |
| Digital Aux Input | No | No |
| Aux Input | Yes | Yes |
| Bluetooth Version | 4.1 | 5.2 |
| Strap | No | No |
| Guitar Input | - | Yes |
| Microphone Input | - | Yes (Karaoke mode with echo effect) |
Related Speaker Comparisons
More top alternatives to 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 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 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: Bag of Riddim vs Harman Kardon Go+ Play 2 - boom boom in da room! 🥳 More from alanrossreviews →
- Alan Ross Reviews: Harman Kardon Go+ Play 3 vs Go Play 2, the holy grail has arrived? ✔
- Alan Ross Reviews: Tribit Stormbox Blast or Harman Kardon Go+ Play 2 Mini by an old bloke!
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- Alan Ross Reviews: JBL Boombox 2 bass monster or the mature Harman Kardon Go+ Play 2 mini for bass?? 💥
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- Head-to-Head Comparisons
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Sony ULT Field 7: $448.99 Amazon $448.99 eBay
Older model: the Sony SRS-XG500 (ranked lower, rated 3/5). See every Sony XB and ULT generation.
Same family: the Sony ULT Field 1 (smaller model, rated 3.1/5), the Sony ULT Tower 10 (larger model, rated 3.9/5), the Sony ULT Field 3 (larger model, rated 3.4/5), the Sony ULT Field 5 (larger model, rated 3.5/5), the Sony ULT Tower 5 (larger model, rated 4.5/5), the Sony ULT Tower 7 (larger model, rated 4.7/5), the Sony ULT Tower 9 (larger model, rated 4.2/5) and the Sony ULT Tower Max (larger model, rated 4.8/5).
Pros: Sony ULT Field 7 uses 2x 114mm x 114mm X-Balanced woofers + 2x 46mm (1.9”) tweeters. Its 6.3 kg, claimed 30 hours (Manufacturer specified) battery life, IP67 protection, aux input and stereo playback make it a practical option for its intended room or portable use. Measured bass extension of ~52Hz (-10dB).
Cons: Bass is limited by its ~52Hz specification. There is no companion app. A peak around 8kHz, and bass does not reach as deep as the top-ranked speakers.
Full Sony ULT Field 7 review and specifications →
| Released | Apr 2024 (2 years ago) |
|---|---|
| Amplifier Power | 100W |
| App | No |
| Aux Input | Yes |
| Bass Extension (-10dB) | ~52Hz |
| Battery Life | 30 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC, AAC, LDAC |
| Bluetooth Version | 5.2 |
| Built-in Microphone | Yes |
| Digital Aux Input | No |
| Dimensions | 20.2” x 8.8” x 8.7” (512 x 224 x 222 mm) |
| Drivers | 2x 114mm x 114mm X-Balanced woofers + 2x 46mm (1.9”) tweeters |
| EQ | Yes (App + ULT button) |
| Guitar Input | Yes |
| IP Rating | IP67 |
| Microphone Input | Yes (Karaoke mode with echo effect) |
| Omnidirectional | No |
| Party Mode | Yes (Party Connect up to 100 speakers) |
| Power Bank | Yes (USB-A, 5V/1.5A) |
| Power Input | AC Power cord |
| Stereo | Yes |
| Strap | No |
| TWS | Yes |
| USB Playback | Yes |
| Weight | 13.9 lbs (6.3 kg) |
- Links
- Reviews, Comparisons and Sound Samples
- Dominik Reviews: Sony ULT Field 7 vs Tribit Stormbox Blast Both good? 😂 More from Dominik Reviews →
- Jay’s Straight Up Reviews & More: SONY ULT Field 7 💣vs JBL Boombox 3 🧨 Showdown! 🪇Let’s Shake it Up! 🔋Battery Powered Basement Battle More from JaysStraightUpReviews →
- Jagist reviews: Xdobo Wow Max Vs Sony Ult Field 7!!! More from Jagistreviews →
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