Говорител - 18" - 1800W RMS - 97dB - 30Hz-1kHz FEATURES4,5 - inch fiberglas Inside/Outside copper voice coil3600 Watt continuous program power handling97 dB Sensitivity30 Hz - 1 kHz Frequency rangeDual Forced Hyperventing SystemDual spider designed with silicon based damping controlBL of 30.5 Txm t..