These are not really the same size class, and that is the honest framing here. The B&O Beosound Level ranks #89 of 117 large speakers by sound quality at $2,250; the JBL Authentics 300 ranks #46 of 112 boombox speakers by sound quality at $299.95.
The B&O Beosound Level is the longer-running, lighter pick. A sculptural luxury speaker that works on battery or mains, mounts on a wall, and streams over Wi-Fi with upgradeable modules. 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. A retro styled smart speaker with both Alexa and Google Assistant, a leather handle and battery power. 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 $299.95 for a boombox speaker instead.
Want more options? Browse the full Portable Bluetooth rankings.
A sculptural luxury speaker that works on battery or mains, mounts on a wall, and streams over Wi-Fi with upgradeable modules.
A retro styled smart speaker with both Alexa and Google Assistant, a leather handle and battery power.
Prices on this page were last checked November 5, 2026 at 10:30 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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Specifications Side By Side
| B&O Beosound Level | JBL Authentics 300 | |
|---|---|---|
| Price | $2,250.00 | $299.95 |
| Ranked | #89 of 117 in Large Size Portable Bluetooth Speakers | #46 of 112 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 |
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