The Power T3S1-19 can rightfully be classified as a "superwoofer" due to its whopping 19-inches of effective radiating cone area! That's right... we don't need no stinkin' 18" subs ... this is for genuine Car Audio Fanatics that want to go BIG like Mannie Fresh. We're talkin' Real Big bass and Real Big power handling in a Real Big ride. 
The Power 19" incorporates technologies never before seen in car audio, like the Injection Molded Foam Surround, making the foam strong and durable like a rubberized material. The Edge Wound voice coil allows the windings to be very close with no air gaps so it stays cool for high power handling capacity.  We also engineered a very efficient "Push/Pull" voice coil design with a huge Neodymium magnet for a very efficient motor assembly.
Specifications:
Three layer glass fiber/Aramid honeycomb/Glass fiber cone
Aluminum dustcap
Injection molded foam surround with VAST™
Proprietary surround mechanical clamping ring
Dual Nomex progressive spiders with integrated lead wires
Aluminum diecast frame with integrated heat sink fins and venting
Custom push spring insulated 4 AWG terminals
Single layer edge wound aluminum 5" voice coil
Since voice coil design with dual (push/pull) windings
Integrated die cast aluminum trim ring
Dual gap multi-pole Neodymium push/pull motor structure
CEA-2031 Compliant: CEA-2031 Guidelines
Size:     19"
Nominal Impedance: 1-Ohm
Power Handling (Watts RMS):
3000 Watts RMS
6000 Watts Max
Voice Coil Diameter: 5.0" (127 mm)
Magnet Weight (oz): 115 oz. (3.26 Kg)
Speaker Connector: 4 AWG Compression Terminal
Fs (Hz): 27
Re (Ohms): 0.8
Le (mH): 0.45
Qms: 1.93
Qes: 0.38
Qts: 0.32
Vas (Liters): 104.9
Sd (cm2): 1472
SPL (dB @ 1w/1m):91
Xmax (mm): 34
Woofer Displacement (in): 0.34 cu. ft. (9.7 Liters)
Cutout Diameter (in): 17.54 in. (445 mm)
Mounting Depth (in): 15.62 in. (396 mm)