Klipsch RSX-4 Reference Series Satellite Speaker ( Sold Individually ) - Black Can serve as either a left or right monitor, and equally well as a surround speaker Delivers incredibly dynamic, accurate sound by coupling a 1-inch titanium dome compression driver to Klipsch's new round Micro Tractrix Horn Also employs a 4-inch long throw woofer powered by a unique neodymium motor structure to capture every sonic detail Cerametallic cone is lightweight with excellent rigidity, dramatically reducing resonance Capable of robust bass extending low enough for effective operation with today's built-in A/V preamp/processor &amp; receiver crossovers