Description : 3" VC, High damping soft dome diaphragm. Short ring and back chamber design, F0 at 260 Hz. Low 2nd and 3rd distortion (low THD). Neodymium magnet, SPL of 90 dB. Frequency response of 260 ~ 8 KHz. Ferrofluid cooled. Applicable For : 3 Way Design, please refer to SUG3-33