These are not really the same size class, and that is the honest framing here. The B&O Beosound Level ranks #61 of 78 large speakers by sound quality at $2250; the JBL Authentics 300 ranks #32 of 75 boombox speakers by sound quality at $299.95.
The case for the B&O Beosound Level: Premium Scandinavian design with elegant domestic sculpture aesthetic. The tradeoff: Not very deep bass, peaks in midrange.
The case for the JBL Authentics 300: Integrates both Amazon Alexa and Google Assistant simultaneously (rare for smart speakers). The tradeoff: Narrow sounding, bass not as deep as others.
Buy the B&O Beosound Level at $2250 for a large speaker, or the JBL Authentics 300 at $299.95 for a boombox speaker instead.
The B&O Beosound Level is not a sound-quality pick. It sits near the bottom of the 78 large speakers; there are better options higher up.
Battery life favors the B&O Beosound Level: rated for 16 hours against 8 hours for the JBL Authentics 300.
Water resistance is not close: the B&O Beosound Level is rated at IP54 (splashing), well ahead of the JBL Authentics 300 at no water resistance.
Want more options? Browse the full Portable Bluetooth rankings.
Specifications Side By Side
| B&O Beosound Level | JBL Authentics 300 | |
|---|---|---|
| Price | $2,250.00 | $299.95 |
| Ranked | #61 of 78 in Large Size Portable Bluetooth Speakers | #32 of 75 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 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 |
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 Encore Essential 2 vs JBL Authentics 300
- JBL Partybox Encore vs JBL Authentics 300
Prices on this page were last checked September 22, 2026 at 5:11 AM 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
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 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 |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
- B&O Beosound Level vs Ultimate Ears Megablast
- B&O Beosound Level vs Ultimate Ears Epicboom
- B&O Beosound Level vs LG PN7
- B&O Beosound Level vs Soundcore Rave Neo
- B&O Beosound Level vs Sony SRS-XG300
- B&O Beosound Level vs Klipsch Detroit
- B&O Beosound Level vs Doss Soundbox XL
- B&O Beosound Level vs JBL Xtreme
- See all 38 comparisons
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. 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 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) |
| 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 →
- Head-to-Head Comparisons
- JBL Authentics 300 vs JBL Boombox 2
- JBL Authentics 300 vs B&O Beolit 20
- JBL Authentics 300 vs W-King X20
- JBL Authentics 300 vs Teufel Boomster 2021
- JBL Authentics 300 vs W-King D20
- JBL Authentics 300 vs Soundcore Boom 2 Plus
- JBL Authentics 300 vs Tronsmart Bang Max
- JBL Authentics 300 vs Zealot ZE01
- See all 80 comparisons