Short answer: the Harman Kardon Go + Play 2 if sound quality matters most, the W-King X20 if price matters most. The Harman Kardon Go + Play 2 ranks #18 of 73 boombox speakers at $350. The W-King X20 ranks #28 at $219.98, $130.02 cheaper.
What the Harman Kardon Go + Play 2 offers: Warm sound with boosted bass. Watch for: Not as loud as others. No water rating.
What the W-King X20 offers: 200W RMS output with 330W peak power, 112dB max volume, exceptional 24-hour battery life with power bank, IPX6 waterproof, EQ with app control and button modes, 7.5-inch subwoofer, Bluetooth 5.3, dual pairing, MicroSD and USB playback, AUX input, TWS stereo mode with 240W combined Watch for: Rising frequency response but upper treble rolled off, 700hz and 1.2khz peaks
Buy the Harman Kardon Go + Play 2 when sound quality outweighs the price for you, and the W-King X20 when the price outweighs sound quality instead.
There is a real gap in water resistance: the W-King X20 at IPX6 (powerful water jets) against the Harman Kardon Go + Play 2, which has no water resistance.
Specifications Side By Side
| Harman Kardon Go + Play 2 | W-King X20 | |
|---|---|---|
| Price | $350 Discontinued | $219.98 after coupon |
| Ranked | #18 of 73 in Boombox Size Portable Bluetooth Speakers | #28 of 73 in Boombox Size Portable Bluetooth Speakers |
| Aux Latency | 0ms | - |
| Bass Extension (-10dB) | 40Hz | ~42Hz |
| Battery Life | 8 hours (Manufacturer specified) | - |
| IP Rating | None | IPX6 |
| Bluetooth Latency | 33ms | - |
| Max Volume | 99dB | 112dB |
| Party Mode | Yes (Wireless Dual Sound) | No |
| Power Input | AC Power brick | USB-C |
| Stereo | Yes | Yes |
| Omnidirectional | No | No |
| Bluetooth Codecs | SBC | SBC |
| App | No | Yes (W-King app) |
| EQ | No | Yes (App + button modes) |
| TWS | No | Yes |
| Power Bank | No | Yes (USB-A) |
| USB Playback | No | Yes |
| Built in Microphone | Yes | No |
| Output Power | 100W AC / 30W battery | 330W peak / 200W RMS |
| Dimensions | 20" x 9" x 9.5" (508 x 228.6 x 241.3 mm) | 19.9" x 8.5" x 10.6" (506 x 217 x 270 mm) |
| Drivers | 2x 90mm (3.5") woofers (front and rear firing) + 2x 20mm tweeters | 7.5" subwoofer + drivers |
| Weight | 5.3 lbs / 2.4 kg | 15.9 lbs / 7200 g |
| Discontinued | Yes | - |
| Digital Aux Input | No | No |
| Aux Input | - | Yes |
| MicroSD Playback | - | Yes |
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Prices on this page were last checked August 27, 2026 at 10:09 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
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 |
| Omnidirectional | No |
| 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 |
- Links
- Reviews, Comparisons and Sound Samples
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- Reddit Search for Harman Kardon Go + Play 2 Review
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W-King X20: $219.98 after coupon Amazon eBay
Pros: 200W RMS output with 330W peak power, 112dB max volume, exceptional 24-hour battery life with power bank, IPX6 waterproof, EQ with app control and button modes, 7.5-inch subwoofer, Bluetooth 5.3, dual pairing, MicroSD and USB playback, AUX input, TWS stereo mode with 240W combined
Cons: Rising frequency response but upper treble rolled off, 700hz and 1.2khz peaks
Full W-King X20 review and specifications →
| App | Yes (W-King app) |
|---|---|
| Aux Input | Yes |
| Bass Extension (-10dB) | ~42Hz |
| Bluetooth Codecs | SBC |
| Built in Microphone | No |
| Digital Aux Input | No |
| Dimensions | 19.9" x 8.5" x 10.6" (506 x 217 x 270 mm) |
| Drivers | 7.5" subwoofer + drivers |
| EQ | Yes (App + button modes) |
| IP Rating | IPX6 |
| Max Volume | 112dB |
| MicroSD Playback | Yes |
| Omnidirectional | No |
| Output Power | 330W peak / 200W RMS |
| Party Mode | No |
| Power Bank | Yes (USB-A) |
| Power Input | USB-C |
| Stereo | Yes |
| TWS | Yes |
| USB Playback | Yes |
| Weight | 15.9 lbs / 7200 g |
- Links
- Reviews, Comparisons and Sound Samples
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