Short answer: the Harman Kardon Onyx Studio 7 for the higher ranking, the Yeahbox Sonic Boom Max 3 for the lower price. The Harman Kardon Onyx Studio 7 ranks #12 of 70 boombox speakers at $298.90. The Yeahbox Sonic Boom Max 3 ranks #37 at $228.99, $69.91 cheaper.
What the Harman Kardon Onyx Studio 7 gets right: Warm sound with boosted bass. The catch: Sounds a little sterile.
On the Yeahbox Sonic Boom Max 3 side: 200W RMS (300W peak) true 3-way, 5-driver array. Set against that: A budget import brand with limited independent testing - specs are manufacturer-claimed.
Buy the Harman Kardon Onyx Studio 7 if the ranking matters more than the price. Buy the Yeahbox Sonic Boom Max 3 if the price matters more than the ranking.
Specifications Side By Side
| Harman Kardon Onyx Studio 7 | Yeahbox Sonic Boom Max 3 | |
|---|---|---|
| Price | $298.90 | $228.99 |
| Ranked | #12 of 70 in Boombox Size Portable Bluetooth Speakers | #37 of 70 in Boombox Size Portable Bluetooth Speakers |
| Aux Input | Yes | Yes |
| Aux Latency | 0ms | - |
| Bass Extension (-10dB) | 37Hz | - |
| Battery Life | 8 hours (Manufacturer specified) | 111Wh (14.8V/7,500mAh) (Manufacturer specified) |
| Built in Microphone | Yes | - |
| IP Rating | None | IPX6 |
| Bluetooth Latency | 266ms | - |
| Max Volume | 96dB | - |
| Party Mode | (Dual Sound up to 2 speakers) | - |
| Power Input | AC Power brick | USB-C |
| Stereo | Partially (1 woofer) | Yes |
| TWS | No | Yes |
| Weight | 6.4 lbs / 2.9 kg | 16.8 lbs / 7.64 kg |
| Bluetooth Codecs | SBC | - |
| App | No | Yes |
| EQ | No | Yes |
| Power Bank | No | - |
| USB Playback | No | Yes |
| Output Power | 50W RMS | 200W RMS / 300W Peak |
| Dimensions | 11.25" x 11.25" (round design) | 20.67" x 8.27" x 10.55" (525 x 210 x 268 mm) |
| Drivers | 2x 75mm woofers + 2x 20mm tweeters | 189x114mm woofer, 2x 89mm midrange, 2x 38mm tweeters |
| MicroSD Playback | - | Yes |
| Bluetooth Version | - | 5.3 |
The Two Speakers In Full
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
Yeahbox Sonic Boom Max 3: $228.99 Amazon
Pros: 200W RMS (300W peak) true 3-way, 5-driver array. 111Wh (14.8V/7,500mAh) battery with fast charging up to 60W. Bluetooth 5.3 with stereo TWS pairing, plus aux, USB, and microSD playback.
Cons: A budget import brand with limited independent testing - specs are manufacturer-claimed, and its water/dust rating is reported inconsistently across listings (IPX6 on Yeahbox’s own site, IP66 or IP67 on various marketplace listings).
| App | Yes |
|---|---|
| Aux Input | Yes |
| Battery Life | 111Wh (14.8V/7,500mAh) (Manufacturer specified) |
| Bluetooth Version | 5.3 |
| Dimensions | 20.67" x 8.27" x 10.55" (525 x 210 x 268 mm) |
| Drivers | 189x114mm woofer, 2x 89mm midrange, 2x 38mm tweeters |
| EQ | Yes |
| IP Rating | IPX6 |
| MicroSD Playback | Yes |
| Output Power | 200W RMS / 300W Peak |
| Power Input | USB-C |
| Stereo | Yes |
| TWS | Yes |
| USB Playback | Yes |
| Weight | 16.8 lbs / 7.64 kg |
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
- Yeahbox Sonic Boom Max 3 vs Zealot S89
- Yeahbox Sonic Boom Max 3 vs Bugani Boost Max
- Yeahbox Sonic Boom Max 3 vs Harman Kardon Onyx Studio 9
- Yeahbox Sonic Boom Max 3 vs JBL Partybox Encore
- Yeahbox Sonic Boom Max 3 vs JBL Partybox Encore Essential 2
- Yeahbox Sonic Boom Max 3 vs Monster Rockin’ Roller 270
- Yeahbox Sonic Boom Max 3 vs W-King H10
- Yeahbox Sonic Boom Max 3 vs Zealot ZE41
- Yeahbox Sonic Boom Max 3 vs Aiwa Exos-9
- Yeahbox Sonic Boom Max 3 vs Altec Lansing Mix 2.0
- Yeahbox Sonic Boom Max 3 vs EcoXGear Defender
- Yeahbox Sonic Boom Max 3 vs Soundcore Rave Party 2
- Yeahbox Sonic Boom Max 3 vs W-King D20
- Yeahbox Sonic Boom Max 3 vs W-King X20
- Yeahbox Sonic Boom Max 3 vs Altec Lansing Rockbox XL 2.0
- Yeahbox Sonic Boom Max 3 vs ION Pathfinder 280
- Yeahbox Sonic Boom Max 3 vs ION Pathfinder 4
- Yeahbox Sonic Boom Max 3 vs JBL Authentics 300
- Yeahbox Sonic Boom Max 3 vs JBL Partybox On the Go
- Yeahbox Sonic Boom Max 3 vs LG Xboom Stage 301
- Yeahbox Sonic Boom Max 3 vs Soundcore Boom 2 Plus
- Yeahbox Sonic Boom Max 3 vs Tribit Stormbox Blast
- Yeahbox Sonic Boom Max 3 vs Tronsmart Bang Max
- Yeahbox Sonic Boom Max 3 vs Zealot ZE21
- Links
As an Amazon Associate I earn from qualifying purchases.
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.