IK Multimedia Two 3.5" Composite Cellulose Mid-Woofers, Back-Chamber Silk-Dome Tweeter, Class-D, Bi-Amped, 100W RMS, DSP-Tuned Bass Reflex, Frequency Response: 48 Hz to 28 kHz, Max SPL: 112.5 dB at 3.3', Built-In ARC Calibration System, Customized...