Big sound, small body. That's the idea behind Naim's Mu-so Qb speaker. Now in its second generation, it packs 300W of power into a cube-like form that's roughly 8.5" on each side. Underneath the fabric grille — available in four swappable colors — sits all-new midrange and bass drivers, developed in collaboration with Focus and powered by a new, more advanced DAC. Up top, there's a new touch-sensitive control dial, and while it's built for streaming with support for most popular options, there's also a 3.5mm, a USB, and an optical digital input.