Tower loudspeakers that play quiet, delicate passages with graceful ease and turn around and replicate complex, demanding music with absorbing dynamics don't come along everyday. Which is why the Sonus faber Principia 5 is worth your attention. Equally at home in a dedicated stereo or multichannel system, and proficient in both small and large spaces, Principia 5 incorporates many prized technical elements from the Italian manufacturer's colourful Chameleon line – yet sells for a lower cost. Featuring a 1.15-inch high-definition fabric dome tweeter with a DKM membrane, two 5.9-inch free-compression-basket mid-woofers, brushed aluminium accents, trapezoidal contours, and newly created silver polypropylene-injected flat-surface cone drivers, the Italian-made Principia 5 touts Sonus faber's famed sonic character and perfection-minded build. The result: Rich, absorbing music playback performed with elegant simplicity and unstinting passion.