The sound quality of the JBL Xtreme 4 speaker is good, even if you turn on the speaker softly, and the speaker has the deep bass that JBL is known for.
Aad Munsterman, Ruud Blom and Rob Coenraads
The new JBL There are three buttons on top: the on/off button, the Bluetooth button to connect the box and your smartphone/tablet via Bluetooth and the Auracast-knob. With Auracast you can connect this speaker to speakers from other brands that also support Auracast. The speaker is available in blue, black and camo and is rated IP67, so it is water and dust resistant. This would make it able to withstand a rain shower and even a splash in the water. Moreover, it can take a beating thanks to the rubber bumpers.
The sound quality is good, even if you turn the speaker on softly and the Xtreme 4 has the deep bass that JBL is known for. The long(er) battery life is nice with a total of 24 hours; What is striking is the replaceable battery, which is very durable. Furthermore, the Xtreme 4 can also be used as a power bank.
You can also connect your box with the JBL Portable app. You can also use the equalizer. You can also turn on PlaytimeBoost in the app: this improves the sound and extends the playback time.
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Product: JBL Xtreme 4
Recommended retail price: €349.99
Pros:
* good sound quality
* 24 hours playback time
* also power bank
* replaceable battery
Negatives:
* suggested retail price
* difficult to carry without a shoulder strap