Klipsch XF48 Gloss Black Icon X Series 2-Way floorstanding speaker frequency response 40Hz-23kHz +/-3dB low frequency extension 33Hz amplifier power 110W continuous system power / 200W peak high freq crossover 2550Hz high frequency drivers 0.75 (1.9cm) titanium diaphragm compression driver mated to 80 x 80 round XT Tractrix Horn