Short answer: the JBL Partybox Encore 2 for off axis consistency, the W-King X20 for output and battery. The Encore 2’s dome tweeters over cone appear to give better off axis performance, though it is missing a little bit of upper bass. The X20 brings 200W RMS output with 330W peak power, 112dB max volume and a 24-hour battery with power bank, but its response rises while the upper treble rolls off, with peaks at 700Hz and 1.2kHz.
Buy the JBL Partybox Encore 2. It is rated higher for sound quality, and saving $100.01 with the W-King X20 does not make up for the sound-quality gap.
If battery life is a priority, the W-King X20 is rated for 24 hours versus 15 hours for the JBL Partybox Encore 2.
Looking for alternatives? See the complete Portable Bluetooth rankings.
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Specifications Side By Side
| JBL Partybox Encore 2 | W-King X20 | |
|---|---|---|
| Price | $330 | $229.99 after coupon |
| Ranked | #4 of 113 in Boombox Size Portable Bluetooth Speakers | #43 of 113 in Boombox Size Portable Bluetooth Speakers |
| App | Yes (JBL PartyBox app) | Yes (W-King app) |
| Aux Input | Yes | Yes |
| Battery Life | 15 hours (Manufacturer specified) | 24 hours (Manufacturer specified) |
| Built-in Microphone | No | No |
| EQ | Yes (7 band App EQ) | Yes (App + button modes) |
| IP Rating | IPX4 | IPX6 |
| Maximum SPL | 110dB (measured by Alan Ross Reviews) | 112dB (measured by Alan Ross Reviews) |
| Party Mode | Yes (Auracast) | No |
| Power Bank | Yes (USB-C) | Yes (USB-A) |
| Power Input | AC Power cord | USB-C |
| Removable Battery | Yes | - |
| Stereo | Yes | Yes |
| Omnidirectional | No | No |
| TWS | Yes | Yes |
| USB Playback | Yes | Yes |
| Weight | 14.1 lbs (6.4 kg) | 15.9 lbs (7200 g) |
| Wireless Microphones | Yes 2 Included | - |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | SBC | SBC |
| Bluetooth Version | 5.4 | 5.4 |
| Amplifier Power | 100W RMS | 330W peak / 200W RMS |
| Dimensions | 12.6” x 13.3” x 10.4” (319.5 x 338.6 x 263 mm) | 19.9” x 8.5” x 10.6” (506 x 217 x 270 mm) |
| Drivers | 1x 135mm (5.25”) woofer + 2x 20mm (0.75”) dome tweeters | 7.5” subwoofer + drivers |
| Digital Aux Input | No | No |
| Lights | Yes | - |
| Strap | No | - |
| Bass Extension (-10dB) | 42Hz | ~42Hz |
| MicroSD Playback | - | Yes |
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