Short answer: the W-King X20 for the higher ranking, the Yeahbox Sonic Boom Max 3 for the lower price. The W-King X20 ranks #28 of 70 boombox speakers at $249.99. The Yeahbox Sonic Boom Max 3 ranks #37 at $228.99, $21 cheaper.
The case for the W-King X20: 200W RMS output with 330W peak power, 112dB max volume, exceptional 24-hour battery life with power bank, IPX6 waterproof. Set against that: Rising frequency response but upper treble rolled off, 700hz and 1.2khz peaks.
What the Yeahbox Sonic Boom Max 3 gets right: 200W RMS (300W peak) true 3-way, 5-driver array. The catch: A budget import brand with limited independent testing - specs are manufacturer-claimed.
Buy the W-King X20 if the ranking matters more than the price. Buy the Yeahbox Sonic Boom Max 3 if the price matters more than the ranking.
Specifications Side By Side
| W-King X20 | Yeahbox Sonic Boom Max 3 | |
|---|---|---|
| Price | $249.99 after coupon | $228.99 |
| Ranked | #28 of 70 in Boombox Size Portable Bluetooth Speakers | #37 of 70 in Boombox Size Portable Bluetooth Speakers |
| App | Yes (W-King app) | Yes |
| Aux Input | Yes | Yes |
| Bass Extension (-10dB) | ~42Hz | - |
| EQ | Yes (App + button modes) | Yes |
| IP Rating | IPX6 | IPX6 |
| Max Volume | 112dB | - |
| MicroSD Playback | Yes | Yes |
| Power Bank | Yes | - |
| Power Input | USB-C | USB-C |
| Stereo | Yes | Yes |
| TWS | Yes | Yes |
| USB Playback | Yes | Yes |
| Bluetooth Codecs | SBC | - |
| Party Mode | No | - |
| Built in Microphone | No | - |
| Output Power | 330W peak / 200W RMS | 200W RMS / 300W Peak |
| Dimensions | 50.6cm x 21.7cm x 27cm | 20.67" x 8.27" x 10.55" (525 x 210 x 268 mm) |
| Drivers | 7.5" subwoofer + drivers | 189x114mm woofer, 2x 89mm midrange, 2x 38mm tweeters |
| Weight | 15.9 lbs / 7200 g | 16.8 lbs / 7.64 kg |
| Battery Life | - | 111Wh (14.8V/7,500mAh) (Manufacturer specified) |
| Bluetooth Version | - | 5.3 |
The Two Speakers In Full
W-King X20: $249.99 after coupon Amazon
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
| App | Yes (W-King app) |
|---|---|
| Aux Input | Yes |
| Bass Extension (-10dB) | ~42Hz |
| Bluetooth Codecs | SBC |
| Built in Microphone | No |
| Dimensions | 50.6cm x 21.7cm x 27cm |
| Drivers | 7.5" subwoofer + drivers |
| EQ | Yes (App + button modes) |
| IP Rating | IPX6 |
| Max Volume | 112dB |
| MicroSD Playback | Yes |
| Output Power | 330W peak / 200W RMS |
| Party Mode | No |
| Power Bank | Yes |
| Power Input | USB-C |
| Stereo | Yes |
| TWS | Yes |
| USB Playback | Yes |
| Weight | 15.9 lbs / 7200 g |
- Reviews, Comparisons and Sound Samples
- Alan Ross Reviews: Soundcore Boom 2 Plus Review - worst boombox speaker under $400?
- Alan Ross Reviews: pound for pound battle! WKing X20 D20 vs Stormbox Blast! OMG its a shocker!
- Alan Ross Reviews: W-King X20 JBL Boombox 3 killer! this should be illegal! - I was shocked!
- Jagist reviews: W-king X20 Vs Jbl Encore!!! 😁😁😁
- Jagist reviews: W-king X20 Vs Skullcandy Barrel XT!!! 🤔😋
- Mateusz Cholewa: Soundcore RAVE 3 🤗v🆚s W- KING X20🎶
- Jay’s Straight Up Reviews & More: New! W-King X20 vs JBL Boombox 3 🛜 Head to Head 🔋Battery Powered 📊Custom EQ - Links In Description
- Jay’s Straight Up Reviews & More: W-King X20 vs Tribit Stormbox Blast 🍿 Garage Battle of Boombox Speakers 🍻Custom & Standard EQ’s
- Jagist reviews: LG xboom Stage 301 Vs W-king X20!!!
- Techder Audios: W-king X20 VS Zealot S95 DEEP BASS VS DEEPER & LOUDER BASS?!
- Jagist reviews: LG xboom Stage 301 Vs W-king X20!!!
- Jagist reviews: W-king X20 Vs Gemini GRV-650L!!! 😍😍😍
- Jagist reviews: Bugani Boost Max Vs W-king X20!!! 😍😍😍
- Jay’s Straight Up Reviews & More: W-King X20 vs Zealot S78 Bluetooth Boombox Battle Outdoor Tailgater Special 🚗 Let the Whoopin’ Begin
- Head-to-Head Comparisons
- Links
Yeahbox Sonic Boom Max 3: $228.99 Amazon
Pros: 200W RMS (300W peak) true 3-way, 5-driver array. 111Wh (14.8V/7,500mAh) battery with fast charging up to 60W. Bluetooth 5.3 with stereo TWS pairing, plus aux, USB, and microSD playback.
Cons: A budget import brand with limited independent testing - specs are manufacturer-claimed, and its water/dust rating is reported inconsistently across listings (IPX6 on Yeahbox’s own site, IP66 or IP67 on various marketplace listings).
| App | Yes |
|---|---|
| Aux Input | Yes |
| Battery Life | 111Wh (14.8V/7,500mAh) (Manufacturer specified) |
| Bluetooth Version | 5.3 |
| Dimensions | 20.67" x 8.27" x 10.55" (525 x 210 x 268 mm) |
| Drivers | 189x114mm woofer, 2x 89mm midrange, 2x 38mm tweeters |
| EQ | Yes |
| IP Rating | IPX6 |
| MicroSD Playback | Yes |
| Output Power | 200W RMS / 300W Peak |
| Power Input | USB-C |
| Stereo | Yes |
| TWS | Yes |
| USB Playback | Yes |
| Weight | 16.8 lbs / 7.64 kg |
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
- Yeahbox Sonic Boom Max 3 vs Zealot S89
- Yeahbox Sonic Boom Max 3 vs Bugani Boost Max
- Yeahbox Sonic Boom Max 3 vs Harman Kardon Onyx Studio 9
- Yeahbox Sonic Boom Max 3 vs JBL Partybox Encore
- Yeahbox Sonic Boom Max 3 vs JBL Partybox Encore Essential 2
- Yeahbox Sonic Boom Max 3 vs Monster Rockin’ Roller 270
- Yeahbox Sonic Boom Max 3 vs W-King H10
- Yeahbox Sonic Boom Max 3 vs Zealot ZE41
- Yeahbox Sonic Boom Max 3 vs Aiwa Exos-9
- Yeahbox Sonic Boom Max 3 vs Altec Lansing Mix 2.0
- Yeahbox Sonic Boom Max 3 vs EcoXGear Defender
- Yeahbox Sonic Boom Max 3 vs Soundcore Rave Party 2
- Yeahbox Sonic Boom Max 3 vs W-King D20
- Yeahbox Sonic Boom Max 3 vs Altec Lansing Rockbox XL 2.0
- Yeahbox Sonic Boom Max 3 vs Harman Kardon Onyx Studio 7
- Yeahbox Sonic Boom Max 3 vs ION Pathfinder 280
- Yeahbox Sonic Boom Max 3 vs ION Pathfinder 4
- Yeahbox Sonic Boom Max 3 vs JBL Authentics 300
- Yeahbox Sonic Boom Max 3 vs JBL Partybox On the Go
- Yeahbox Sonic Boom Max 3 vs LG Xboom Stage 301
- Yeahbox Sonic Boom Max 3 vs Soundcore Boom 2 Plus
- Yeahbox Sonic Boom Max 3 vs Tribit Stormbox Blast
- Yeahbox Sonic Boom Max 3 vs Tronsmart Bang Max
- Yeahbox Sonic Boom Max 3 vs Zealot ZE21
- Links
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Product prices and availability were last checked August 9, 2026 at 6:57 AM UTC 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.