These are not really the same size class, and that is the honest framing here. The B&O Beosound Level ranks #84 of 102 large speakers by sound quality at $2,250; the JBL Authentics 300 ranks #41 of 91 boombox speakers by sound quality at $499.95.
The B&O Beosound Level is the longer-running, lighter pick. Premium Scandinavian design with elegant domestic sculpture aesthetic. It is rated for 16 hours of battery against 8 for the JBL Authentics 300. At 7.3 lbs (3.3 kg) it weighs noticeably less than the JBL Authentics 300 at 10.8 lbs (4.9 kg). It is rated IP54, while the JBL Authentics 300 has no water resistance. The tradeoff: Not very deep bass, peaks in midrange.
The JBL Authentics 300 is the deeper-bass choice. Integrates both Amazon Alexa and Google Assistant simultaneously (rare for smart speakers). Its bass reaches about 45Hz before falling 10dB, against 60Hz for the B&O Beosound Level. It links with other speakers (Wi-Fi Multi-Room), which the B&O Beosound Level cannot. It has an adjustable EQ, which the B&O Beosound Level lacks. The catch: Narrow sounding, bass not as deep as others.
Buy the B&O Beosound Level at $2,250 for a large speaker, or the JBL Authentics 300 at $499.95 for a boombox speaker instead.
Want more options? Browse the full Portable Bluetooth rankings.
Specifications Side By Side
| B&O Beosound Level | JBL Authentics 300 | |
|---|---|---|
| Price | $2,250.00 | $499.95 |
| Ranked | #84 of 102 in Large Size Portable Bluetooth Speakers | #41 of 91 in Boombox Size Portable Bluetooth Speakers |
| Aux Input | Yes | No |
| Bass Extension (-10dB) | ~60Hz | 45Hz |
| Battery Life | 16 hours (Manufacturer specified) | 8 hours (Manufacturer specified) |
| Weight | 7.3 lbs (3.3 kg) | 10.8 lbs (4.9 kg) |
| Wi-Fi | Yes | Yes |
| App | No | Yes |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | SBC | SBC |
| Built-in Microphone | Yes | Yes |
| Voice Assistants | Google Assistant | Amazon Alexa & Google Assistant (simultaneous) |
| EQ | No | Yes (App EQ) |
| IP Rating | IP54 | None |
| Party Mode | No | Yes (Wi-Fi Multi-Room) |
| Power Bank | No | No |
| Power Input | USB-C | AC Power cable |
| Stereo | Yes | Partially (1 woofer) |
| Omnidirectional | No | No |
| TWS | Yes | Yes |
| Bluetooth Version | 5.0 | 5.3 |
| Drivers | 2x 102mm woofers, 1x 51mm fullrange, 2x 20mm tweeters | 1” tweeter + 4” woofer + passive radiators |
| Dimensions | 13.7” x 9.1” x 2.2” (348 x 230 x 56 mm) | 13.5” x 7.7” x 7.1” (342 x 195.6 x 180.3 mm) |
| Frequency Response | 39Hz - 23kHz (Manufacturer specified) | - |
| Amplifier Power | 105W | 100W |
| Maximum SPL | 96dB (Manufacturer specified) | 100dB (measured by Alan Ross Reviews) |
| Digital Aux Input | No | No |
| USB Playback | - | Yes |
| MicroSD Playback | - | No |
| Strap | - | No |
Related Speaker Comparisons
How JBL Authentics 300 compares with other leading options:
- 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 7, 2026 at 9:25 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
B&O Beosound Level: $2,250.00 Amazon eBay
Pros: Premium Scandinavian design with elegant domestic sculpture aesthetic. Battery, WiFi, and Bluetooth enable AC/portable use, upright/flat/wall-mount positioning. Modular design with upgradeable wireless module, sound processing, and battery. 16-hour battery with quick-connect Mag-Safe rear charging puck. 105W output. Measured bass extension of ~60Hz (-10dB).
Cons: Not very deep bass, peaks in midrange. Hugely expensive.
Full B&O Beosound Level review and specifications →
| Amplifier Power | 105W |
|---|---|
| App | No |
| Aux Input | Yes |
| Bass Extension (-10dB) | ~60Hz |
| Battery Life | 16 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC |
| Bluetooth Version | 5.0 |
| Built-in Microphone | Yes |
| Digital Aux Input | No |
| Dimensions | 13.7” x 9.1” x 2.2” (348 x 230 x 56 mm) |
| Drivers | 2x 102mm woofers, 1x 51mm fullrange, 2x 20mm tweeters |
| EQ | No |
| Frequency Response | 39Hz - 23kHz (Manufacturer specified) |
| IP Rating | IP54 |
| Maximum SPL | 96dB (Manufacturer specified) |
| Omnidirectional | No |
| Party Mode | No |
| Power Bank | No |
| Power Input | USB-C |
| Stereo | Yes |
| TWS | Yes |
| Voice Assistants | Google Assistant |
| Weight | 7.3 lbs (3.3 kg) |
| Wi-Fi | Yes |
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JBL Authentics 300: $499.95 Amazon 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 →
| 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 |
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- Alan Ross Reviews: Not quite! JBL Authentics 300 review and sound test vs Boombox 3, Encore and Stormbox Blast More from alanrossreviews →
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