KEF engineers do not believe in compromise. The svelte styling of R5 contains the same Uni-Q as its bigger brothers, with a 125mm (5in.) midrange driver and 25mm (1 in.) aluminium dome tweeter producing incredible levels of detail. The slightly smaller 130mm (5.25 in) bass drivers still produce exceptionally clean bass whether placed in a smaller room or as surround speakers as part of the ultimate home theatre system.