Short answer: the JBL Partybox Encore Essential 2 for off axis sound, the W-King X20 for output. The Essential 2’s dome tweeters over cone appear better off axis, 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 Essential 2. It is rated higher for sound quality, and saving $19.96 with the W-King X20 does not make up for the sound-quality gap.
Battery life favors the W-King X20: rated for 24 hours against 15 hours for the JBL Partybox Encore Essential 2.
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Specifications Side By Side
| JBL Partybox Encore Essential 2 | W-King X20 | |
|---|---|---|
| Price | $249.95 | $229.99 after coupon |
| Ranked | #6 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) |
| Guitar Input | Yes | - |
| IP Rating | IPX4 | IPX6 |
| Microphone Input | Yes (Karaoke mode with echo effect) | - |
| Party Mode | Yes (Auracast) | No |
| Power Bank | Yes (USB-C) | Yes (USB-A) |
| Power Input | AC Power cord | USB-C |
| Stereo | Yes | Yes |
| Omnidirectional | No | No |
| TWS | Yes | Yes |
| USB Playback | Yes | Yes |
| Weight | 13.7 lbs (6.2 kg) | 15.9 lbs (7200 g) |
| Wireless Microphones | No | - |
| 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 13.5” x 10.3” (319.5 x 342 x 260.4 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 |
| Maximum SPL | 110dB (measured by Alan Ross Reviews) | 112dB (measured by Alan Ross Reviews) |
| Digital Aux Input | No | No |
| Lights | Yes | - |
| Strap | No | - |
| Bass Extension (-10dB) | 42Hz | ~42Hz |
| MicroSD Playback | - | Yes |
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