The Serio speaker from Waterfall Audio is very different from what you’ve probably seen so far, considering it comes with a heat-dissipating system known as Heatstream patented to Waterfall. Capable of dealing with high levels of power from a compact unit, the Serio is also light enough to fit into most bookshelves discreetly. You can also leave it standing on a table or up on a stand, where you can choose from black, white and silver colors with matching grills. For those who want something more colorful, orange and green fashionable grills can also be purchased. Each Serio speaker tips the scales at 1kg, offering a peak power of 150 watts while retailing for £179 a pop.