These are not really the same size class, and that is the honest framing here. The Denon Home 350 ranks #9 of 10 powered desktop speakers by sound quality at $749; the JBL Authentics 300 ranks #46 of 112 boombox speakers by sound quality at $299.95.
What the Denon Home 350 does well: A large Wi-Fi smart speaker that plays loud, with lossless streaming, built in Alexa that hears you well, and app tone controls. It keeps a wired aux input, which the JBL Authentics 300 lacks. Watch for: RTINGS measured a slightly boomy sound profile out of the box and disappointing directivity, so the sound changes noticeably off to the side of the cabinet, plus compression artifacts as it nears max volume.
The JBL Authentics 300 is the battery-powered option. A retro styled smart speaker with both Alexa and Google Assistant, a leather handle and battery power. Its battery is rated for 8 hours, while the Denon Home 350 needs an outlet. Watch for: Narrow sounding, bass not as deep as others.
Buy the Denon Home 350 at $749 if you want a powered desktop speaker. Buy the JBL Authentics 300 at $299.95 if you want a boombox speaker instead.
Looking for alternatives? See the complete Powered Home rankings and Portable Bluetooth rankings.
A large Wi-Fi smart speaker that plays loud, with lossless streaming, built in Alexa that hears you well, and app tone controls.
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
| Denon Home 350 | JBL Authentics 300 | |
|---|---|---|
| Price | $749.00 each | $299.95 |
| Ranked | #9 of 10 in Large Size Powered Desktop Speakers | #46 of 112 in Boombox Size Portable Bluetooth Speakers |
| Aux Input | Yes | No |
| Battery Life | No Battery | 8 hours (Manufacturer specified) |
| IP Rating | None | None |
| Party Mode | Yes (HEOS multi-room, stereo pair with a second Home 350) | Yes (Wi-Fi Multi-Room) |
| Power Input | External AC adapter | AC Power cable |
| Stereo | Yes | Partially (1 woofer) |
| Weight | 14.8 lbs (6.7 kg) | 10.8 lbs (4.9 kg) |
| Wi-Fi | Yes (2.4/5GHz) | Yes |
| App | Yes (HEOS) | Yes |
| Bluetooth Codecs | SBC | SBC |
| Built-in Microphone | Yes (far-field) | Yes |
| EQ | Yes (Bass/Treble sliders) | Yes (App EQ) |
| Power Bank | No | No |
| TWS | No | Yes |
| Drivers | 2x 0.75-inch tweeters, 2x 2-inch midrange drivers, 2x 6.5-inch woofers | 1” tweeter + 4” woofer + passive radiators |
| Inputs | Wi-Fi, Bluetooth, Ethernet, USB, 3.5mm aux | - |
| XLR Input | No | - |
| RCA Input | No | - |
| TRS Input | No | - |
| Optical Input | No | - |
| Coaxial Input | No | - |
| USB Input | Yes | - |
| HDMI Input | No | - |
| AES Input | No | - |
| Bluetooth | Yes | Yes |
| Bluetooth Version | 5.4 | 5.3 |
| Dimensions | 15” x 9.1” x 7.1” (380 x 230 x 180 mm) | 13.5” x 7.7” x 7.1” (342 x 195.6 x 180.3 mm) |
| Voice Assistants | Amazon Alexa | Amazon Alexa & Google Assistant (simultaneous) |
| Streaming Services | HEOS app streaming (Spotify, Tidal, Amazon Music, Deezer, SoundCloud, TuneIn), AirPlay 2, Roon | - |
| Bass Extension (-10dB) | - | 45Hz |
| Maximum SPL | - | 100dB (measured by Alan Ross Reviews) |
| Omnidirectional | - | No |
| USB Playback | - | Yes |
| MicroSD Playback | - | No |
| Amplifier Power | - | 100W |
| Digital Aux Input | - | No |
| Strap | - | No |
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