These are not really the same size class, and that is the honest framing here. The Denon Home 350 ranks #6 of 6 powered desktop speakers by sound quality at $749; the JBL Authentics 300 ranks #32 of 75 boombox speakers by sound quality at $299.95.
The case for the Denon Home 350: RTINGS measured it getting pretty loud with lossless streaming support from platforms like Roon, Tidal and Spotify, and found its Alexa voice assistant support outstanding, with hands-free far-field mics built directly into the speaker. The tradeoff: 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 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 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.
Specifications Side By Side
| Denon Home 350 | JBL Authentics 300 | |
|---|---|---|
| Price | $749 each | $299.95 |
| Ranked | #6 of 6 in Large Size Powered Desktop Speakers | #32 of 75 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 |
| Discontinued | No | - |
| 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, 5.4 | - |
| 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 |
| Bluetooth Version | - | 5.3 |
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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.
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The Two Speakers In Full
Denon Home 350: $749 each Amazon eBay
Pros: RTINGS measured it getting pretty loud with lossless streaming support from platforms like Roon, Tidal and Spotify, and found its Alexa voice assistant support outstanding, with hands-free far-field mics built directly into the speaker. Two 0.75-inch tweeters, two 2-inch midrange drivers and two 6.5-inch woofers are each driven by their own Class D amp, six in total, and the companion app adds bass and treble sliders for room-to-room tuning.
Cons: 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. Bluetooth latency measured extremely high on both iOS and Android, making it a poor match for watching video over Bluetooth, and there’s no battery, so it’s an indoor, mains-powered speaker only.
Full Denon Home 350 review and specifications →
| AES Input | No |
|---|---|
| App | Yes (HEOS) |
| Aux Input | Yes |
| Battery Life | No Battery |
| Bluetooth | Yes, 5.4 |
| Bluetooth Codecs | SBC |
| Built-in Microphone | Yes (far-field) |
| Coaxial Input | No |
| Dimensions | 15" x 9.1" x 7.1" (380 x 230 x 180 mm) |
| Discontinued | No |
| Drivers | 2x 0.75-inch tweeters, 2x 2-inch midrange drivers, 2x 6.5-inch woofers |
| EQ | Yes (Bass/Treble sliders) |
| HDMI Input | No |
| IP Rating | None |
| Inputs | Wi-Fi, Bluetooth, Ethernet, USB, 3.5mm aux |
| Optical Input | No |
| Party Mode | Yes (HEOS multi-room, stereo pair with a second Home 350) |
| Power Bank | No |
| Power Input | External AC adapter |
| RCA Input | No |
| Stereo | Yes |
| Streaming Services | HEOS app streaming (Spotify, Tidal, Amazon Music, Deezer, SoundCloud, TuneIn), AirPlay 2, Roon |
| TRS Input | No |
| TWS | No |
| USB Input | Yes |
| Voice Assistants | Amazon Alexa |
| Weight | 14.8 lbs (6.7 kg) |
| Wi-Fi | Yes (2.4/5GHz) |
| XLR Input | No |
- Links
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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 →
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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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