Short answer: the Harman Kardon Citation 200. It ranks #13 of 77 large speakers by sound quality at $130; the Soundcore Motion X600 ranks #19 and costs $150, so there is not much of a tradeoff to weigh.
What the Harman Kardon Citation 200 offers: Deeper bass than any Onyx. 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.
On the Soundcore Motion X600 side: Firmware 4.2.9 is a big improvement in sound quality over previous releases. Set against that: Stock frequency response is wavy.
Buy the Harman Kardon Citation 200. It ranks higher for sound quality than the Soundcore Motion X600 and costs less, so there is no real case for the other one.
If water resistance matters to you, the Soundcore Motion X600 at IPX7 (brief submersion) holds up far better than the Harman Kardon Citation 200 at IPX4 (splashing).

Specifications Side By Side
| Harman Kardon Citation 200 | Soundcore Motion X600 | |
|---|---|---|
| Price | $130 Discontinued | $150 |
| Ranked | #13 of 77 in Large Size Portable Bluetooth Speakers | #19 of 77 in Large Size Portable Bluetooth Speakers |
| Aux Input | No | Yes |
| Battery Life | 8 hours (Manufacturer specified) | 12 hours (Manufacturer specified) |
| IP Rating | IPX4 | IPX7 |
| Stereo | Partially (1 woofer) | Yes |
| Omnidirectional | No | No |
| Weight | 6.3 lbs / 2.85 kg | 5.2 lbs / 2.35 kg |
| Wifi | Yes | - |
| Bluetooth Codecs | SBC | SBC |
| App | Yes (Harman Kardon app) | No |
| EQ | No | No |
| TWS | No | Yes |
| Party Mode | No | Yes (PartyCast up to 100 speakers) |
| Power Bank | No | Yes (USB-C) |
| USB Playback | No | - |
| Built in Microphone | Yes | Yes |
| Power Input | USB-C | USB-C |
| Bluetooth Version | 4.2 | 5.3 |
| Dimensions | 7" x 8.6" x 6.8" (178 x 219 x 172 mm) | 11.8" x 4.8" x 3.2" (300 x 121 x 81 mm) |
| Drivers | 5" woofer, 1" tweeter | 2x 60mm woofers, 2x 27mm tweeters, 1x 50mm upward-firing driver |
| Frequency Response | 40Hz - 20kHz (Manufacturer specified) | 50Hz - 40kHz (Manufacturer specified) |
| Output Power | 50W | 50W |
| Discontinued | Yes | - |
| Digital Aux Input | No | No |
| Aux Latency | - | 0ms |
| Bass Extension (-10dB) | - | 52Hz |
| Bluetooth Latency | - | 83ms |
| Max Volume | - | 104dB |
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- JBL Xtreme 3 vs onn Portable FM Boombox
- Soundcore Select Pro vs JBL Xtreme 3
- JBL Xtreme 3 vs W-King X10
- Soundcore Motion X600 vs LG Xboom Bounce
- Soundcore Motion X600 vs Soundcore Rave Neo 2
The Two Speakers In Full
Harman Kardon Citation 200: $130 Discontinued
Pros: Deeper bass than any Onyx.
Cons: 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. Discontinued.
Full Harman Kardon Citation 200 review and specifications →
| App | Yes (Harman Kardon app) |
|---|---|
| Aux Input | No |
| Battery Life | 8 hours (Manufacturer specified) |
| Bluetooth Codecs | SBC |
| Bluetooth Version | 4.2 |
| Built in Microphone | Yes |
| Digital Aux Input | No |
| Dimensions | 7" x 8.6" x 6.8" (178 x 219 x 172 mm) |
| Discontinued | Yes |
| Drivers | 5" woofer, 1" tweeter |
| EQ | No |
| Frequency Response | 40Hz - 20kHz (Manufacturer specified) |
| IP Rating | IPX4 |
| Omnidirectional | No |
| Output Power | 50W |
| Party Mode | No |
| Power Bank | No |
| Power Input | USB-C |
| Stereo | Partially (1 woofer) |
| TWS | No |
| USB Playback | No |
| Weight | 6.3 lbs / 2.85 kg |
| Wifi | Yes |
As an eBay Partner, we may be compensated if you make a purchase.
- Links
- Reviews, Comparisons and Sound Samples
- Ezekielo: Citation 200 vs Beolit 20 with Sound Comparison!
- KULAS TECH SHOW: Harman Kardon Citation 200 vs JBL Xtreme3 Sound & Bass test
- Ezekielo: Citation 200 vs Onyx Studio 6 vs Bose Portable Speaker Sound Comparison
- KULAS TECH SHOW: Harman Kardon Citation 200 vs Onyx Studio 7 Bass comparison
- Reddit Search for Harman Kardon Citation 200 Review
- Head-to-Head Comparisons
- Harman Kardon Citation 200 vs B&O Beosound A5
- Harman Kardon Citation 200 vs Soundcore Motion Boom
- Harman Kardon Citation 200 vs Marshall Stockwell 2
- Harman Kardon Citation 200 vs Soundcore Select Pro
- Harman Kardon Citation 200 vs Soundcore Boom 2
- Harman Kardon Citation 200 vs B&O Beoplay A2 active
- Harman Kardon Citation 200 vs Bose SoundLink Max
- Harman Kardon Citation 200 vs JBL Xtreme 3
- See all 16 comparisons
Soundcore Motion X600: $150 Amazon Bhphotovideo
Pros: Firmware 4.2.9 is a big improvement in sound quality over previous releases. Try this Oluv EQ for the best sound quality
Cons: Stock frequency response is wavy. Use spatial mode for best sound quality. Need a different EQ for each volume step. Dip in the upper bass around 120hz. Rising frequency response, treble a little hot. Would be ranked around #20 without the Oluv EQ. Even with the Oluv EQ the bass isn’t very deep and the sound is still a little unnatural.
Full Soundcore Motion X600 review and specifications →
| App | No |
|---|---|
| Aux Input | Yes |
| Aux Latency | 0ms |
| Bass Extension (-10dB) | 52Hz |
| Battery Life | 12 hours (Manufacturer specified) |
| Bluetooth Codecs | SBC |
| Bluetooth Latency | 83ms |
| Bluetooth Version | 5.3 |
| Built in Microphone | Yes |
| Digital Aux Input | No |
| Dimensions | 11.8" x 4.8" x 3.2" (300 x 121 x 81 mm) |
| Drivers | 2x 60mm woofers, 2x 27mm tweeters, 1x 50mm upward-firing driver |
| EQ | No |
| Frequency Response | 50Hz - 40kHz (Manufacturer specified) |
| IP Rating | IPX7 |
| Max Volume | 104dB |
| Omnidirectional | No |
| Output Power | 50W |
| Party Mode | Yes (PartyCast up to 100 speakers) |
| Power Bank | Yes (USB-C) |
| Power Input | USB-C |
| Stereo | Yes |
| TWS | Yes |
| Weight | 5.2 lbs / 2.35 kg |
As an eBay Partner, we may be compensated if you make a purchase.
- Links
- Reviews, Comparisons and Sound Samples
- Alan Ross Reviews: Soundcore Motion X600 now tuned by Alan Ross (sort of) Not clickbait!
- Alan Ross Reviews: breaking news…..Soundcore Motion X600 with LDAC and spatial audio!
- Alan Ross Reviews: Spatial Audio: Soundcore Motion X600 Vs Tribit Stormbox Blast
- Alan Ross Reviews: Soundcore Motion x600 (best speaker ever) or two motion booms?
- Alan Ross Reviews: Craziest firmware update ever - Soundcore Motion X600 3.2.8/4.2.8 🤦♀️
- Oluv Patreon: SoundCore Motion X600 vs VIFA Helsinki
- NeverEnoughTech: soundcore Motion X600 vs. Sonos Move vs. Bose Soundlink Revolve II
- Jay’s Straight Up Reviews & More: TREBLAB HD-360 (360° Sound) vs Soundcore Motion X600 (Spatial Sound)😮💨 Cornered in Basement Kitchen
- Reddit Search for Soundcore Motion X600 Review
- Head-to-Head Comparisons
- Soundcore Motion X600 vs Soundcore Rave Neo 2
- Soundcore Motion X600 vs JBL Xtreme 3
- Soundcore Motion X600 vs Bose SoundLink Max
- Soundcore Motion X600 vs Bose SoundLink Plus
- Soundcore Motion X600 vs B&O Beoplay A2 active
- Soundcore Motion X600 vs Soundcore Select Pro
- Soundcore Motion X600 vs Soundcore Motion X500
- Soundcore Motion X600 vs Soundcore Motion Boom
- See all 23 comparisons

