Short answer: the Harman Kardon Onyx Studio 6. It ranks #11 of 70 boombox speakers at $130; the Harman Kardon Onyx Studio 7 ranks #12 and costs $298.90, so there is not much of a tradeoff to weigh.
The case for the Harman Kardon Onyx Studio 6: Oluv liked it slightly better than the newer Onyx 7. The catch: 8 hour battery at medium volume.
What the Harman Kardon Onyx Studio 7 gets right: Warm sound with boosted bass. Set against that: Sounds a little sterile.
Buy the Harman Kardon Onyx Studio 6 if the ranking matters more than the price. Buy the Harman Kardon Onyx Studio 7 if the price matters more than the ranking.
Specifications Side By Side
| Harman Kardon Onyx Studio 6 | Harman Kardon Onyx Studio 7 | |
|---|---|---|
| Price | $130 | $298.90 |
| Ranked | #11 of 70 in Boombox Size Portable Bluetooth Speakers | #12 of 70 in Boombox Size Portable Bluetooth Speakers |
| Aux Input | Yes | Yes |
| Bass Extension (-10dB) | 37Hz | 37Hz |
| Battery Life | 8 hours (Manufacturer specified) | 8 hours (Manufacturer specified) |
| Built in Microphone | Yes | Yes |
| IP Rating | IPX7 | None |
| Bluetooth Latency | 180ms | 266ms |
| Max Volume | 96dB | 96dB |
| Party Mode | (Dual Sound up to 2 speakers) | (Dual Sound up to 2 speakers) |
| Power Input | 19V/2A | AC Power brick |
| Stereo | Yes | Partially (1 woofer) |
| 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 | 6.4 lbs / 2.9 kg |
| Bluetooth Codecs | SBC | SBC |
| App | No | No |
| EQ | No | No |
| Power Bank | No | No |
| USB Playback | No | No |
| Bluetooth Version | 4.2 | - |
| Output Power | 50W RMS | 50W RMS |
| Dimensions | 5.04" x 11.46" x 11.18" (128 x 291 x 284 mm) | 11.25" x 11.25" (round design) |
| Drivers | 2x 75mm woofers + 2x 20mm tweeters | 2x 75mm woofers + 2x 20mm tweeters |
| Aux Latency | - | 0ms |
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
Harman Kardon Onyx Studio 7: $298.90 Amazon
Pros: Warm sound with boosted bass.
Cons: Sounds a little sterile. 8 hour battery at medium volume, teeny bit less bass than the Onyx 6. Not at loud as others. No water rating.
| App | No |
|---|---|
| Aux Input | Yes |
| Aux Latency | 0ms |
| Bass Extension (-10dB) | 37Hz |
| Battery Life | 8 hours (Manufacturer specified) |
| Bluetooth Codecs | SBC |
| Bluetooth Latency | 266ms |
| Built in Microphone | Yes |
| Dimensions | 11.25" x 11.25" (round design) |
| Drivers | 2x 75mm woofers + 2x 20mm tweeters |
| EQ | No |
| IP Rating | None |
| Max Volume | 96dB |
| Output Power | 50W RMS |
| Party Mode | (Dual Sound up to 2 speakers) |
| Power Bank | No |
| Power Input | AC Power brick |
| Stereo | Partially (1 woofer) |
| TWS | No |
| USB Playback | No |
| Weight | 6.4 lbs / 2.9 kg |
- Reviews, Comparisons and Sound Samples
- Alan Ross Reviews: JBL Boombox 2 vs Onyx Studio 7 big bass battle 💋
- Alan Ross Reviews: Onyx Studio 7 vs Onyx Studio 6 - massive deep bass battle 😁
- Geri’s Collection: Harman Kardon Onyx 7 vs Onyx 4
- KULAS TECH SHOW: Harman / Kardon Onyx Studio 5 vs Onyx Studio 7 - Close battle🔥🔥
- Alan Ross Reviews: Ultimate HK Onyx Studio speaker review and comparison! 8 speakers!
- 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.