These are not really the same size class, and that is the honest framing here. The JBL Partybox Stage 320 ranks #3 of 53 party speakers by sound quality at $569.95; the W-King X20 ranks #43 of 113 boombox speakers by sound quality at $229.99.
Different sizes. The Stage 320 is a 36.4 lbs (16.5 kg) party speaker. The W-King X20 is a 15.9 lbs (7.2 kg) boombox. Each is rated within its own class.
The X20 measured about 112dB with bass to about 42Hz, is IPX6, and claims 24 hours. It has a rising frequency response with peaks around 700Hz and 1.2kHz.
The Stage 320 keeps more bass at high volume than the PartyBox 310, with wheels, a removable battery and mic and guitar inputs.
Buy the JBL Partybox Stage 320 ($569.95) for a party speaker; the W-King X20 ($229.99) suits a boombox speaker instead.
Want more options? Browse the full Portable Bluetooth rankings.
Prices on this page were last checked November 11, 2026 at 3:26 AM 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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Specifications Side By Side
| JBL Partybox Stage 320 | W-King X20 | |
|---|---|---|
| Price | $569.95 | $229.99 after coupon |
| Ranked | #3 of 53 in Party Size Portable Bluetooth Speakers | #43 of 113 in Boombox Size Portable Bluetooth Speakers |
| App | Yes | Yes (W-King app) |
| Aux Input | Yes | Yes |
| Battery Life | 18 hours (Manufacturer specified) | 24 hours (Manufacturer specified) |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | SBC | SBC |
| Bluetooth Version | 5.4 | 5.4 |
| Drivers | 2x 6.5” woofers, 2x 25mm tweeters | 7.5” subwoofer + drivers |
| EQ | Yes (5 band) | 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-A, 5V/2.1A) | Yes (USB-A) |
| Power Input | AC Power cord | USB-C |
| Removable Battery | Yes | - |
| Stereo | Partially | Yes |
| Omnidirectional | No | No |
| TWS | Yes | Yes |
| USB Playback | Yes | Yes |
| Weight | 36.4 lbs (16.5 kg) | 15.9 lbs (7200 g) |
| Amplifier Power | 240W | 330W peak / 200W RMS |
| Digital Aux Input | No | No |
| Lights | Yes | - |
| Wheels | Yes | - |
| Dimensions | 26.3”H x 13.2”W x 15.2”D (669 x 335 x 385 mm) | 19.9” x 8.5” x 10.6” (506 x 217 x 270 mm) |
| Strap | No | - |
| Bass Extension (-10dB) | - | ~42Hz |
| Maximum SPL | - | 112dB (measured by Alan Ross Reviews) |
| MicroSD Playback | - | Yes |
| Built-in Microphone | - | No |
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