Braven BRV-XXL

£330 braven.com

If you want big, booming sound then your best bet is the hulking BRV-XXL. With Bluetooth, separate bass and treble controls, plus incredibly rich, deep sound thanks to its included subwoofer, it’s got you covered whether you take it to the beach or a DJ party. A 14-hour battery and IPX5 splashproof rating seal the deal.