Soundstream Tarantula T7.152 15″ Subwoofer 900 Watt

  15″ Dual 4 Ohm Tarantula Series Subwoofer Power Handling: RMS: 900 watts Non pressed paper pulp cone Polyether foam surround 2.5″ dual 2 ohm 4 layer voice coil Vented 12mm t-yoke and frame Sensitivity: 80.0dB High temperature tollerance adhesives resist thermal failure Aluminum dust cap fins dissipate heat and strengthen the cone Dual poly-cotton suspension dampens violent accelerations SPECIFICATIONST7.152 Fs (hz) 26.64 Qms 5.38 Vas (ft^3) 3.773 Cms (mm/n) 0.109 Mms (g) 327 Xmax 15 Xmech 22.5 Dia (in.) 12.79 Sd (in^2) 128.6 Vd (ft^3) 0.066 Qes 0.53 Re (ohms) 3.83 Z (ohms) 4 BL 19.98 Pe (watts) 900 Qts 0.48 No 0.367 1w/1m SPL 87.73 VC DIA (IN)  2.5 VC (Ohms) DVC2 M-vd (ft^3) 0.27 Cut-out 14.000 Depth 7.75 Recommended Enclosures High Tuning  Sm Sealed 1.50 Qtc 0.914 F3 44.26 Med Sealed 2.00 Qtc 0.812 F3 42.27 Lg Sealed 2.50 Qtc 0.749 F3 41.55 Low Tuning  Sm Vented 3.00 port (2)3×9.75 Fb 34.26 F3 31.3 Med Vented 4.00 port (2)4×15.75 Fb 32.08 F3 28.48 Lg Vented 5.00 port (2)4×13 Fb 30.23 F3 26.27