Short answer: the JBL Authentics 300 if sound quality matters most, the W-King X10 if price matters most. The JBL Authentics 300 ranks #30 of 73 boombox speakers at $299.95. The W-King X10 ranks #62 at $80, $219.95 cheaper.
What the JBL Authentics 300 offers: Integrates both Amazon Alexa and Google Assistant simultaneously (rare for smart speakers). Retro seventies design with leather and Quadrex grille. 100-watt amp, carries well with leather-trimmed handle. Rechargeable battery rated ~8 hours. Watch for: Narrow sounding, bass not as deep as others. Peaky upper mids. No TWS. No IP rating. Not as loud as others. Not much battery life.
What the W-King X10 offers: 70W RMS output with 120W peak power, exceptional 42-hour battery life, power bank function, IPX6 waterproof, 106dB max volume, EQ with indoor/outdoor modes, dual woofers with tweeters and passive radiators, Bluetooth 5.0 with 100ft range, MicroSD and USB playback, AUX input, TWS stereo pairing Watch for: Heavily rolled off treble, less bass than the top ranked.
Buy the JBL Authentics 300 if sound quality matters more than the price. Buy the W-King X10 if the price matters more than sound quality.
Skip the W-King X10 if sound quality matters to you. It ranks near the bottom of the 73 boombox speakers.
There is a real battery-life gap here: the W-King X10 is rated for 42 hours, the JBL Authentics 300 only 8 hours.
Water resistance is not close: the W-King X10 is rated at IPX6 (powerful water jets), well ahead of the JBL Authentics 300 at no water resistance.
Specifications Side By Side
| JBL Authentics 300 | W-King X10 | |
|---|---|---|
| Price | $299.95 | $80 |
| Ranked | #30 of 73 in Boombox Size Portable Bluetooth Speakers | #62 of 73 in Boombox Size Portable Bluetooth Speakers |
| App | Yes | No |
| Bass Extension (-10dB) | 45Hz | 52Hz |
| Battery Life | 8 hours (Manufacturer specified) | 42 hours (Manufacturer specified) |
| EQ | Yes (App EQ) | Yes (2 modes - Indoor/Outdoor) |
| IP Rating | None | IPX6 |
| Max Volume | 100dB | 106dB |
| Party Mode | Yes (Wi-Fi Multi-Room) | No |
| Power Input | AC Power cable | USB-C |
| Stereo | Partially (1 woofer) | Yes |
| Omnidirectional | No | No |
| TWS | Yes | Yes |
| Weight | 10.8 lbs / 4.9 kg | 6.5 lbs / 2.95 kg |
| Wifi | Yes | - |
| Bluetooth Codecs | SBC | SBC |
| Power Bank | No | Yes (USB-A) |
| USB Playback | Yes | Yes |
| Built in Microphone | Yes | Yes |
| MicroSD Playback | No | Yes |
| Aux Input | No | Yes |
| Output Power | 100W | 70W RMS (120W peak) |
| Dimensions | 13.5" x 7.7" x 7.1" (342 x 195.6 x 180.3 mm) | 12.4" x 5.5" x 5.3" (315 x 140 x 135 mm) |
| Drivers | 1" tweeter + 4" woofer + passive radiators | 2x 3.66" (93mm) subwoofers + 2x 1.2" (31mm) neodymium tweeters + 3x passive radiators |
| Digital Aux Input | No | No |
| FM Tuner | - | No |
| Bluetooth Version | - | 5.0 |
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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
JBL Authentics 300: $299.95 Amazon eBay
Pros: Integrates both Amazon Alexa and Google Assistant simultaneously (rare for smart speakers). Retro seventies design with leather and Quadrex grille. 100-watt amp, carries well with leather-trimmed handle. Rechargeable battery rated ~8 hours.
Cons: Narrow sounding, bass not as deep as others. Peaky upper mids. No TWS. No IP rating. Not as loud as others. Not much battery life.
Full JBL Authentics 300 review and specifications →
| App | Yes |
|---|---|
| Aux Input | No |
| Bass Extension (-10dB) | 45Hz |
| Battery Life | 8 hours (Manufacturer specified) |
| Bluetooth Codecs | SBC |
| Built in Microphone | Yes |
| Digital Aux Input | No |
| Dimensions | 13.5" x 7.7" x 7.1" (342 x 195.6 x 180.3 mm) |
| Drivers | 1" tweeter + 4" woofer + passive radiators |
| EQ | Yes (App EQ) |
| IP Rating | None |
| Max Volume | 100dB |
| MicroSD Playback | No |
| Omnidirectional | No |
| Output Power | 100W |
| Party Mode | Yes (Wi-Fi Multi-Room) |
| Power Bank | No |
| Power Input | AC Power cable |
| Stereo | Partially (1 woofer) |
| TWS | Yes |
| USB Playback | Yes |
| Weight | 10.8 lbs / 4.9 kg |
| Wifi | Yes |
- Links
- Reviews, Comparisons and Sound Samples
- JOY‘s 🎧3D🔈Audio-Show: JBL Authentics 300 - sound quality test More from Oluv’Sone →
- Oluv Patreon: JBL Authentics 300 - update
- Oluv Patreon: JBL Authentics 300 - listening session
- Alan Ross Reviews: Not quite! JBL Authentics 300 review and sound test vs Boombox 3, Encore and Stormbox Blast More from alanrossreviews →
- Reddit Search for JBL Authentics 300 Review
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W-King X10: $80 Amazon Aliexpress eBay
Pros: 70W RMS output with 120W peak power, exceptional 42-hour battery life, power bank function, IPX6 waterproof, 106dB max volume, EQ with indoor/outdoor modes, dual woofers with tweeters and passive radiators, Bluetooth 5.0 with 100ft range, MicroSD and USB playback, AUX input, TWS stereo pairing
Cons: Heavily rolled off treble, less bass than the top ranked.
Full W-King X10 review and specifications →
| App | No |
|---|---|
| Aux Input | Yes |
| Bass Extension (-10dB) | 52Hz |
| Battery Life | 42 hours (Manufacturer specified) |
| Bluetooth Codecs | SBC |
| Bluetooth Version | 5.0 |
| Built in Microphone | Yes |
| Digital Aux Input | No |
| Dimensions | 12.4" x 5.5" x 5.3" (315 x 140 x 135 mm) |
| Drivers | 2x 3.66" (93mm) subwoofers + 2x 1.2" (31mm) neodymium tweeters + 3x passive radiators |
| EQ | Yes (2 modes - Indoor/Outdoor) |
| FM Tuner | No |
| IP Rating | IPX6 |
| Max Volume | 106dB |
| MicroSD Playback | Yes |
| Omnidirectional | No |
| Output Power | 70W RMS (120W peak) |
| Party Mode | No |
| Power Bank | Yes (USB-A) |
| Power Input | USB-C |
| Stereo | Yes |
| TWS | Yes |
| USB Playback | Yes |
| Weight | 6.5 lbs / 2.95 kg |
- Links
- Reviews, Comparisons and Sound Samples
- Alan Ross Reviews: W-King D10 speaker vs the D8, D9 and X10 WKing speakers 👀 More from alanrossreviews →
- Alan Ross Reviews: W-King X10 vs JBL Xtreme 3, Xtreme 2 and Xtreme 1! Xtreme Review 🤓
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- Alan Ross Reviews: W King x10 vs x10-1 - updates, changes, also D9 and Motion Boom!
- Jay’s Straight Up Reviews & More: ZEALOT S-67 🦨 75w Bluetooth Speaker Review🤦🏼♂️ & Comparison With W-King X10. More from JaysStraightUpReviews →
- Reddit Search for W-King X10 Review
- Head-to-Head Comparisons