Ground Zero GZNK 165SQ-K

- Speaker type: 165 mm / 6.5? SQ midwoofer - Impedance (nominal): 4 ohms - Frequency response: 40 Hz ? 5 kHz - Basket: Aluminum cast - Cone: Kevlar - Motor: Neodymium-ferrite hybrid system - Voice coil: 38 mm / 1.5? CCA - Power handling: (RMS) 130 Watts (12dB/oct HPF@ 60 Hz) - Power handling: (max.) 190 Watts (12dB/oct HPF@ 60 Hz) - Technical Parameters (TSP) - Resonance frequency: 43 Hz - Efficiency: (SPL) 88 dB - Re: 3.3 ohms - Qms: 4.57 - Qes: 0.53 - Qts: 0.48 - Vas: 24.13 L / 0.82 cu.ft. - Mms: 14.3 g - BL: 4.85 N/A - Rms: 0.84 kg/s - Cms: 0.98 mm/N - LE: 0.18 mH - Xmax: (excursion) 12 mm / 0.47? (peak-peak)