Short answer: the Harman Kardon Onyx Studio 7 for better sound quality, the Zealot ZE01 for the lower price. The Harman Kardon Onyx Studio 7 ranks #12 of 73 boombox speakers at $298.90. The Zealot ZE01 ranks #25 at $169.99, $128.91 cheaper.
What the Harman Kardon Onyx Studio 7 offers: Warm sound with boosted bass. Watch for: 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.
What the Zealot ZE01 offers: Appears to be the same internals as the S95 Watch for: A little rolled off up top and not that balanced through the rest of the range. Clarity isn’t as good as better speakers.
Buy the Harman Kardon Onyx Studio 7 if sound quality is the priority over the price, or the Zealot ZE01 if the price is the priority over sound quality.
There is a real battery-life gap here: the Zealot ZE01 is rated for 40 hours, the Harman Kardon Onyx Studio 7 only 8 hours.
If water resistance matters to you, the Zealot ZE01 at IPX6 (powerful water jets) holds up far better than the Harman Kardon Onyx Studio 7 at no water resistance.
Specifications Side By Side
| Harman Kardon Onyx Studio 7 | Zealot ZE01 | |
|---|---|---|
| Price | $298.90 | $169.99 |
| Ranked | #12 of 73 in Boombox Size Portable Bluetooth Speakers | #25 of 73 in Boombox Size Portable Bluetooth Speakers |
| Aux Input | Yes | Yes |
| Aux Latency | 0ms | - |
| Bass Extension (-10dB) | 37Hz | 45Hz |
| Battery Life | 8 hours (Manufacturer specified) | 40 hours (Manufacturer specified) |
| Built in Microphone | Yes | No |
| IP Rating | None | IPX6 |
| Bluetooth Latency | 266ms | - |
| Max Volume | 96dB | - |
| Party Mode | Yes (Wireless Dual Sound) | No |
| Power Input | DC Barrel Connector (19V/2.1A) | USB-C |
| Stereo | Partially (1 woofer) | Yes |
| Omnidirectional | No | No |
| TWS | No | Yes |
| Weight | 6.4 lbs / 2.9 kg | 13.2 lbs / 6.0 kg |
| Bluetooth Codecs | SBC | SBC |
| App | No | No |
| EQ | No | Yes (multiple modes) |
| Power Bank | No | Yes (USB-A + USB-C) |
| USB Playback | No | Yes |
| Output Power | 50W RMS | 120W RMS / 150W peak |
| Dimensions | 11.3" x 11.3" (285.8 x 285.8 mm) (round design) | 13.1" x 11.2" x 8.1" (332 x 284 x 207 mm) |
| Drivers | 2x 75mm woofers + 2x 20mm tweeters | Dual 120mm speakers + dual 42mm speakers |
| Digital Aux Input | No | No |
| MicroSD Playback | - | Yes |
Related Speaker Comparisons
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- Soundcore Boom 2 Plus vs JBL Authentics 300
- Tribit Stormbox Blast 2 vs Soundcore Boom 2 Plus
- Soundcore Boom 2 Plus vs JBL Partybox On the Go
- Tribit Stormbox Blast vs Harman Kardon Onyx Studio 7
- Harman Kardon Onyx Studio 7 vs Soundcore Boom 2 Plus
Prices on this page were last checked August 27, 2026 at 10:09 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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The Two Speakers In Full
Harman Kardon Onyx Studio 7: $298.90 Amazon eBay
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.
Full Harman Kardon Onyx Studio 7 review and specifications →
| 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 |
| Digital Aux Input | No |
| Dimensions | 11.3" x 11.3" (285.8 x 285.8 mm) (round design) |
| Drivers | 2x 75mm woofers + 2x 20mm tweeters |
| EQ | No |
| IP Rating | None |
| Max Volume | 96dB |
| Omnidirectional | No |
| Output Power | 50W RMS |
| Party Mode | Yes (Wireless Dual Sound) |
| Power Bank | No |
| Power Input | DC Barrel Connector (19V/2.1A) |
| Stereo | Partially (1 woofer) |
| TWS | No |
| USB Playback | No |
| Weight | 6.4 lbs / 2.9 kg |
- Links
- Reviews, Comparisons and Sound Samples
- Alan Ross Reviews: JBL Boombox 2 vs Onyx Studio 7 big bass battle 💋 More from alanrossreviews →
- 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🔥🔥 More from KULASTECHSHOW20 →
- Alan Ross Reviews: Ultimate HK Onyx Studio speaker review and comparison! 8 speakers!
- Reddit Search for Harman Kardon Onyx Studio 7 Review
- Head-to-Head Comparisons
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- Harman Kardon Onyx Studio 7 vs Harman Kardon Onyx Studio 9
- Harman Kardon Onyx Studio 7 vs Harman Kardon Onyx Studio 8
- Harman Kardon Onyx Studio 7 vs Zealot ZE41
- Harman Kardon Onyx Studio 7 vs Zealot ZE21
- Harman Kardon Onyx Studio 7 vs Zealot S89
- Harman Kardon Onyx Studio 7 vs JBL Partybox Encore Essential
- Harman Kardon Onyx Studio 7 vs JBL Boombox 4
- See all 44 comparisons
Zealot ZE01: $169.99 Amazon Aliexpress eBay
Pros: Appears to be the same internals as the S95
Cons: A little rolled off up top and not that balanced through the rest of the range. Clarity isn’t as good as better speakers.
Full Zealot ZE01 review and specifications →
| App | No |
|---|---|
| Aux Input | Yes |
| Bass Extension (-10dB) | 45Hz |
| Battery Life | 40 hours (Manufacturer specified) |
| Bluetooth Codecs | SBC |
| Built in Microphone | No |
| Digital Aux Input | No |
| Dimensions | 13.1" x 11.2" x 8.1" (332 x 284 x 207 mm) |
| Drivers | Dual 120mm speakers + dual 42mm speakers |
| EQ | Yes (multiple modes) |
| IP Rating | IPX6 |
| MicroSD Playback | Yes |
| Omnidirectional | No |
| Output Power | 120W RMS / 150W peak |
| Party Mode | No |
| Power Bank | Yes (USB-A + USB-C) |
| Power Input | USB-C |
| Stereo | Yes |
| TWS | Yes |
| USB Playback | Yes |
| Weight | 13.2 lbs / 6.0 kg |
- Links
- Reviews, Comparisons and Sound Samples
- Bullionix_Gadgets_Reviews: ZEALOT ZE-01 VS ZEALOT S-95! 😱: Sound Comparison!!!
- Techder Audios: ZEALOT S89 VS ZEALOT ZE01 EXTREME POWERFULL VS COMPACTER BASS PERFORMANCE! More from techderaudios →
- Techder Audios: Zealot ZE01 VS Tronsmart Bang Max SOLID VOCALS VS DEEPER BASS
- Techder Audios: Zealot ZE01 VS Xdobo BMTL Wow Max DEEPER BASS VS LOUDER BASS?!
- Reddit Search for Zealot ZE01 Review
- Head-to-Head Comparisons