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It’s not big speaker level, but it’s impressive nonetheless. 1 x Harman Kardon Onyx Studio 4, 1 x Power adaptor, 1 x Quick start guide, 1 x Safety sheet, 1 x Warranty card. Crafted to be the best sounding, full featured, portable Bluetooth speaker in its class, the Onyx Studio 4 offers two device connections, 8 hours of playtime. The Formula car in the intro and throughout the track zooms from one side of the stage to the other, and there’s a surprising presence in the sub-bass that I wasn’t expecting. It excels in the upper and mid-bass, pumping out plenty of thump. The perfect example of this is Charlotte De Witte’s Doppler which is perhaps the best way to see how the speaker reacts to something truly low.
HARMAN KARDON ONYX STUDIO 4 DRIVER
A passive radiator is a type of driver (speaker) that doesn't have a voice coil and a magnet. High audio output power results in loud, clear sounds. It excels in the upper and mid-bass, pumping out plenty of thump. Audio output power is based on the number of speakers and their power in watts. It couldn’t be called open and airy by any stretch of the imagination - it’s more like being in a sweaty club. It’s not to the level of something with dedicated Spatial Audio, or a pair of stereo speakers, but when properly situated it’s got plenty of space to the sound. That's perhaps the biggest strength of the sound - the soundstage is remarkably wide. Lipa’s vocals are perfectly replicated, and the sound widens as the track progresses. The synth bass is well-defined, with plenty of low stuff to keep things moving on. Spinning up Dua Lipa’s Hallucinate, and you’ll be bopping along in no time.
