These are not really the same size class, and that is the honest framing here. The JBL Partybox Club 120 ranks #6 of 53 party speakers by sound quality at $399.95; the Harman Kardon Onyx Studio 9 ranks #15 of 113 boombox speakers by sound quality at $184.99.
Different sizes. The Club 120 is a 23.8 lbs (10.8 kg) party speaker. The Onyx Studio 9 is a 9.3 lbs (4.2 kg) boombox size speaker. Each is rated within its own class.
The Onyx Studio 9 is balanced and smooth with non-fatiguing treble and bass to about 41Hz. It has no water rating, no aux input and a claimed 8 hours.
The Club 120 is quite neutral with a removable battery, a claimed 12 hours, IPX4, mic and guitar inputs, lights and wheels.
Buy the JBL Partybox Club 120 at $399.95 for a party speaker, or the Harman Kardon Onyx Studio 9 at $184.99 for a boombox speaker instead.
There is a real gap in water resistance: the JBL Partybox Club 120 at IPX4 (splashing) against the Harman Kardon Onyx Studio 9, which has no water resistance.
Looking for alternatives? See the complete Portable Bluetooth rankings.
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Specifications Side By Side
| JBL Partybox Club 120 | Harman Kardon Onyx Studio 9 | |
|---|---|---|
| Price | $399.95 | $184.99 |
| Ranked | #6 of 53 in Party Size Portable Bluetooth Speakers | #15 of 113 in Boombox Size Portable Bluetooth Speakers |
| App | Yes | Yes (Harman Kardon One app) |
| Aux Input | Yes | No |
| Battery Life | 12 hours (Manufacturer specified) | 8 hours (Manufacturer specified) |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | SBC | SBC |
| Bluetooth Version | 5.4 | 5.3 |
| Charging Time | 3.5 hours | - |
| Drivers | 2x 5.25” woofers, 2x 2.25” tweeters | 120mm woofer + 3x 20mm tweeters |
| EQ | Yes (5 band) | Yes (App EQ) |
| Frequency Response | 40Hz - 20kHz (Manufacturer specified) | - |
| Guitar Input | Yes | - |
| IP Rating | IPX4 | None |
| Microphone Input | Yes (Karaoke mode with echo effect) | - |
| Party Mode | Yes (Auracast) | Yes (Auracast) |
| Power Bank | Yes (USB-A, 5V/2.1A) | - |
| Power Input | AC Power cord | AC Power Cable (2-Prong) |
| Removable Battery | Yes | - |
| Stereo | Partially | Yes |
| Omnidirectional | No | No |
| TWS | Yes | Yes |
| USB Playback | Yes | No |
| Weight | 23.8 lbs (10.8 kg) | 9.3 lbs (4.2 kg) |
| Amplifier Power | 160W | 50W RMS |
| Digital Aux Input | No | No |
| Lights | Yes | - |
| Dimensions | 22.4”H x 11.4”W x 11.7”D (570 x 288.4 x 297 mm) | 11.4” x 11.3” x 5.1” (289.2 x 287.5 x 130 mm) |
| Strap | No | No |
| Bass Extension (-10dB) | - | 41Hz |
| Maximum SPL | - | 101dB (measured by Alan Ross Reviews) |
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