These sit in different size classes, so this is not a straight ranking comparison. The Harman Kardon Citation 200 ranks #13 of 117 large speakers by sound quality at $130; the Sonos Era 300 ranks #6 of 10 powered desktop speakers by sound quality at $499.
The Harman Kardon Citation 200 is the battery-powered, tougher pick. A portable smart speaker with Wi-Fi, Google Assistant and deep bass for its size, now discontinued but worth buying used. Its battery is rated for 8 hours, while the Sonos Era 300 needs an outlet. It is rated IPX4, while the Sonos Era 300 has no water resistance. Watch for: Overly boomy by default, you can short press the Bluetooth and volume down buttons simultaneously to decrease the bass, and the Bluetooth and volume up buttons simultaneously to increase it.
What the Sonos Era 300 does well: A Wi-Fi smart speaker with real stereo and Dolby Atmos spatial audio, excellent Alexa voice pickup and Trueplay room tuning. It links with other speakers (Sonos multi-room, AirPlay 2), which the Harman Kardon Citation 200 cannot. It has an adjustable EQ, which the Harman Kardon Citation 200 lacks. Watch for: RTINGS’ one listed con is some compression at max volume.
Worth knowing: the Harman Kardon Citation 200 is discontinued, though it still ranks #13 of 117 large speakers by sound quality, so a used unit beats most of what is still sold new.
Buy the Harman Kardon Citation 200 at $130 if you want a large speaker. Buy the Sonos Era 300 at $499 if you want a powered desktop speaker instead.
Looking for alternatives? See the complete Portable Bluetooth rankings and Powered Home rankings.
A portable smart speaker with Wi-Fi, Google Assistant and deep bass for its size, now discontinued but worth buying used.
A Wi-Fi smart speaker with real stereo and Dolby Atmos spatial audio, excellent Alexa voice pickup and Trueplay room tuning.
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
| Harman Kardon Citation 200 | Sonos Era 300 | |
|---|---|---|
| Price | $130 Discontinued | $499.00 each |
| Ranked | #13 of 117 in Large Size Portable Bluetooth Speakers | #6 of 10 in Large Size Powered Desktop Speakers |
| Aux Input | No | No |
| Battery Life | 8 hours (Manufacturer specified) | No Battery |
| IP Rating | IPX4 | None |
| Stereo | Partially (1 woofer) | Yes |
| Omnidirectional | No | - |
| Weight | 6.3 lbs (2.85 kg) | 9.9 lbs (4.47 kg) |
| Wi-Fi | Yes | Yes (Wi-Fi 6) |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | SBC | SBC |
| App | Yes (Harman Kardon app) | Yes (Sonos S2) |
| EQ | No | Yes (Bass/Treble + Trueplay room correction) |
| TWS | No | Yes (stereo pairing via Sonos app) |
| Party Mode | No | Yes (Sonos multi-room, AirPlay 2) |
| Power Bank | No | No |
| USB Playback | No | - |
| Built-in Microphone | Yes | Yes (far-field, mic mute button) |
| Voice Assistants | Google Assistant | Amazon Alexa |
| Power Input | USB-C | External AC adapter |
| Bluetooth Version | 4.2 | 5.0 |
| Dimensions | 7” x 8.6” x 6.8” (178 x 219 x 172 mm) | 7.3” x 10.2” x 6.3” (185 x 260 x 160 mm) |
| Drivers | 5” woofer, 1” tweeter | 4x tweeters (1 forward, 2 side, 1 upward-firing), 2x angled woofers |
| Frequency Response | 40Hz - 20kHz (Manufacturer specified) | - |
| Amplifier Power | 50W | - |
| Digital Aux Input | No | - |
| Inputs | - | Wi-Fi, Bluetooth, USB-C (line-in adapter sold separately) |
| XLR Input | - | No |
| RCA Input | - | No |
| TRS Input | - | No |
| Optical Input | - | No |
| Coaxial Input | - | No |
| USB Input | - | Yes (line-in adapter sold separately) |
| HDMI Input | - | No |
| AES Input | - | No |
| Streaming Services | - | Sonos app streaming (Spotify, Apple Music, Amazon Music and more), AirPlay 2, Dolby Atmos Music |
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