Short answer: the JBL Authentics 300 if sound quality matters most, the W-King X10 if price matters most. The JBL Authentics 300 ranks #44 of 98 boombox speakers, rated 3.5/5, at $499.95. The W-King X10 ranks #86, rated 2.3/5, at $80, $419.95 cheaper.
The JBL Authentics 300 is the better-sounding, deeper-bass pick. Integrates both Amazon Alexa and Google Assistant simultaneously (rare for smart speakers). Its bass reaches about 45Hz before falling 10dB, against 52Hz for the W-King X10. It links with other speakers (Wi-Fi Multi-Room), which the W-King X10 cannot. Watch for: Narrow sounding, bass not as deep as others.
The W-King X10 is the louder, longer-running pick. Alan Ross Reviews measured it at 106dB at full volume, against 100dB for the JBL Authentics 300. It is rated for 42 hours of battery against 8 for the JBL Authentics 300. At 6.5 lbs (2.95 kg) it weighs much less than the JBL Authentics 300 at 10.8 lbs (4.9 kg). The catch: 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.
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.
Looking for alternatives? See the complete Portable Bluetooth rankings.
Specifications Side By Side
| JBL Authentics 300 | W-King X10 | |
|---|---|---|
| Price | $499.95 | $80 |
| Ranked | #44 of 98 in Boombox Size Portable Bluetooth Speakers | #86 of 98 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 |
| Maximum SPL | 100dB (measured by Alan Ross Reviews) | 106dB (measured by Alan Ross Reviews) |
| 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) |
| Wi-Fi | Yes | - |
| Bluetooth | Yes | 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 |
| Amplifier 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 |
| Bluetooth Version | 5.3 | 5.0 |
| Voice Assistants | Amazon Alexa & Google Assistant (simultaneous) | - |
| Strap | No | Yes (detachable shoulder strap) |
| FM Tuner | - | No |
Related Speaker Comparisons
More worthwhile head-to-heads for JBL Authentics 300:
- Tribit Stormbox Blast vs JBL Authentics 300
- Harman Kardon Go + Play 3 vs JBL Authentics 300
- JBL Partybox Encore 2 vs JBL Authentics 300
- JBL PartyBox On-The-Go 2 Plus vs JBL Authentics 300
- JBL Partybox Encore Essential 2 vs JBL Authentics 300
Prices on this page were last checked October 12, 2026 at 4:13 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.
As an eBay Partner, we may be compensated if you make a purchase.
The Two Speakers In Full
JBL Authentics 300: $499.95 Amazon $499.95 eBay
Same family: the JBL Authentics 200 (smaller model, rated 3.7/5) and the JBL Authentics 500 (larger model, rated 4.1/5).
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. Measured bass extension of 45Hz (-10dB).
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 →
| Released | Sep 2023 (3 years ago) |
|---|---|
| Amplifier Power | 100W |
| App | Yes |
| Aux Input | No |
| Bass Extension (-10dB) | 45Hz |
| Battery Life | 8 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC |
| Bluetooth Version | 5.3 |
| 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 |
| Maximum SPL | 100dB (measured by Alan Ross Reviews) |
| MicroSD Playback | No |
| Omnidirectional | No |
| Party Mode | Yes (Wi-Fi Multi-Room) |
| Power Bank | No |
| Power Input | AC Power cable |
| Stereo | Partially (1 woofer) |
| Strap | No |
| TWS | Yes |
| USB Playback | Yes |
| Voice Assistants | Amazon Alexa & Google Assistant (simultaneous) |
| Weight | 10.8 lbs (4.9 kg) |
| Wi-Fi | 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 →
- Storytripper HD: W-King H330 vs JBL Authentics 300 More from storytripperhd →
- Head-to-Head Comparisons
- JBL Authentics 300 vs JBL Boombox 2
- JBL Authentics 300 vs B&O Beolit 20
- JBL Authentics 300 vs Aiwa Exos-10
- JBL Authentics 300 vs W-King X20
- JBL Authentics 300 vs Onn Pro X Large Boom Boombox
- JBL Authentics 300 vs Teufel Boomster 4
- JBL Authentics 300 vs Teufel Boomster 2021
- JBL Authentics 300 vs W-King D20
- See all 110 comparisons
W-King X10: $80 Amazon $80 AliExpress $80.37 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. Measured bass extension of 52Hz (-10dB).
Cons: Heavily rolled off treble, less bass than the top ranked.
Full W-King X10 review and specifications →
| Released | May 2021 (5 years ago) |
|---|---|
| Amplifier Power | 70W RMS (120W peak) |
| App | No |
| Aux Input | Yes |
| Bass Extension (-10dB) | 52Hz |
| Battery Life | 42 hours (Manufacturer specified) |
| Bluetooth | Yes |
| 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 |
| Maximum SPL | 106dB (measured by Alan Ross Reviews) |
| MicroSD Playback | Yes |
| Omnidirectional | No |
| Party Mode | No |
| Power Bank | Yes (USB-A) |
| Power Input | USB-C |
| Stereo | Yes |
| Strap | Yes (detachable shoulder strap) |
| TWS | Yes |
| USB Playback | Yes |
| Weight | 6.5 lbs (2.95 kg) |
- Links
- Reviews, Comparisons and Sound Samples
- Alan Ross Reviews: W-King X10 (70w) vs Soundcore Motion Boom (30w) - value for money? 🤑 More from alanrossreviews →
- Alan Ross Reviews: W King x10 vs x10-1 - updates, changes, also D9 and Motion Boom!
- Alan Ross Reviews: W-King D10 speaker vs the D8, D9 and X10 WKing speakers 👀
- Alan Ross Reviews: W-King X10 vs JBL Xtreme 3, Xtreme 2 and Xtreme 1! Xtreme Review 🤓
- Jay’s Straight Up Reviews & More: ZEALOT S-67 🦨 75w Bluetooth Speaker Review🤦🏼♂️ & Comparison With W-King X10. More from JaysStraightUpReviews →
- Head-to-Head Comparisons