Short answer: the Vifa Copenhagen 2.0 for the higher ranking, the Harman Kardon Onyx Studio 6 for the lower price. The Vifa Copenhagen 2.0 ranks #9 of 70 boombox speakers at $800. The Harman Kardon Onyx Studio 6 ranks #11 at $130, $670 cheaper.
On the Harman Kardon Onyx Studio 6 side: Warm sound with boosted bass. The tradeoff: 8 hour battery at medium volume.
The case for the Vifa Copenhagen 2.0: Fabric finish is easy to clean and cozy to touch. Set against that: 350hz and 2-3khz peak.
Buy the Harman Kardon Onyx Studio 6 if the price matters more than the ranking. Buy the Vifa Copenhagen 2.0 if the ranking matters more than the price.
Specifications Side By Side
| Harman Kardon Onyx Studio 6 | Vifa Copenhagen 2.0 | |
|---|---|---|
| Price | $130 | $800 |
| Ranked | #11 of 70 in Boombox Size Portable Bluetooth Speakers | #9 of 70 in Boombox Size Portable Bluetooth Speakers |
| Aux Input | Yes | Yes |
| Bass Extension (-10dB) | 37Hz | 46Hz |
| Battery Life | 8 hours (Manufacturer specified) | 8 hours (Manufacturer specified) |
| Built in Microphone | Yes | No |
| IP Rating | IPX7 | None |
| Bluetooth Latency | 180ms | - |
| Max Volume | 96dB | - |
| Party Mode | (Dual Sound up to 2 speakers) | No |
| Power Input | 19V/2A | AC Power brick |
| Stereo | Yes | Yes |
| TWS | Yes (see https://www.reddit.com/r/Bluetooth_Speakers/comments/w339x5/how_to_harman_kardon_onyx_studio_5_6_dual_sound/) | No |
| Weight | 6.5 lbs / 2.94 kg | 10.3 lbs / 4.65 kg |
| Bluetooth Codecs | SBC | aptX HD |
| App | No | No |
| EQ | No | No |
| Power Bank | No | No |
| USB Playback | No | Yes |
| Bluetooth Version | 4.2 | 4.1 |
| Output Power | 50W RMS | 100W |
| Dimensions | 5.04" x 11.46" x 11.18" (128 x 291 x 284 mm) | 10.55" x 3.54" x 14.25" (268 x 90 x 362 mm) |
| Drivers | 2x 75mm woofers + 2x 20mm tweeters | 2x 94mm woofers + 2x 50mm midrange + 2x 28mm tweeters + 4 passive radiators |
The Two Speakers In Full
Harman Kardon Onyx Studio 6: $130 Amazon
Pros: Warm sound with boosted bass. Oluv liked it slightly better than the newer Onyx 7.
Cons: 8 hour battery at medium volume. Not at loud as others.
| App | No |
|---|---|
| Aux Input | Yes |
| Bass Extension (-10dB) | 37Hz |
| Battery Life | 8 hours (Manufacturer specified) |
| Bluetooth Codecs | SBC |
| Bluetooth Latency | 180ms |
| Bluetooth Version | 4.2 |
| Built in Microphone | Yes |
| Dimensions | 5.04" x 11.46" x 11.18" (128 x 291 x 284 mm) |
| Drivers | 2x 75mm woofers + 2x 20mm tweeters |
| EQ | No |
| IP Rating | IPX7 |
| Max Volume | 96dB |
| Output Power | 50W RMS |
| Party Mode | (Dual Sound up to 2 speakers) |
| Power Bank | No |
| Power Input | 19V/2A |
| Stereo | Yes |
| TWS | Yes (see https://www.reddit.com/r/Bluetooth_Speakers/comments/w339x5/how_to_harman_kardon_onyx_studio_5_6_dual_sound/) |
| USB Playback | No |
| Weight | 6.5 lbs / 2.94 kg |
- Reviews, Comparisons and Sound Samples
- Alan Ross Reviews: Onyx Studio 7 vs Onyx Studio 6 - massive deep bass battle 😁
- That Speaker Guy: Harman Kardon Onyx Studio 6 vs Devialet Mania
- Ezekielo: Citation 200 vs Onyx Studio 6 vs Bose Portable Speaker Sound Comparison
- Alan Ross Reviews: Harman Kardon Go+ Play 2 mini or Onyx Studio 6 - best speaker for bass?
- Alan Ross Reviews: Ultimate HK Onyx Studio speaker review and comparison! 8 speakers!
- Head-to-Head Comparisons
- Links
Vifa Copenhagen 2.0: $800 Amazon
Pros: Fabric finish is easy to clean and cozy to touch. Durable - dropped from 2m with only minor scratches. Wi-Fi/AirPlay/wired (optical, aux, USB) in addition to Bluetooth. ~5 hour battery at full volume.
Cons: 350hz and 2-3khz peak. The Vifa Helsinki is cheaper and generally has a more neutral frequency response, I’d highly recommend getting one of those instead if you specifically want a Vifa. Not sure I can recommend this one generally these days, the Uboom L has 95% of the sound quality with more features and a way cheaper price. No water rating.
| App | No |
|---|---|
| Aux Input | Yes |
| Bass Extension (-10dB) | 46Hz |
| Battery Life | 8 hours (Manufacturer specified) |
| Bluetooth Codecs | aptX HD |
| Bluetooth Version | 4.1 |
| Built in Microphone | No |
| Dimensions | 10.55" x 3.54" x 14.25" (268 x 90 x 362 mm) |
| Drivers | 2x 94mm woofers + 2x 50mm midrange + 2x 28mm tweeters + 4 passive radiators |
| EQ | No |
| IP Rating | None |
| Output Power | 100W |
| Party Mode | No |
| Power Bank | No |
| Power Input | AC Power brick |
| Stereo | Yes |
| TWS | No |
| USB Playback | Yes |
| Weight | 10.3 lbs / 4.65 kg |
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
- Links
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Product prices and availability were last checked August 9, 2026 at 6:57 AM UTC 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.