Soundstorm 8" Woofer 400W Max

Subwoofer Size: 8"e;
Total Power Output: 400 Watts Max
Voice Coil Size: 1.25"e;
Voice Coil Structure: SINGLE 4 OHM
Voice Coil Material: Aluminum
Cone Material: Black Poly Injection Cone
Free Air Resonance (FS): 46 Hz
Total Q (QTS): 0.57
Electrical Q: 0.61
Mechanical Q: 7.77
Surround Material: Foam
Basket Structure: Stamped
Box Type: Both Sealed or Ported

Enclosure specs:
Mounting Depth: 3 3/8"e;
Port Frequency = 38 Hz; Large = Hz
Ported Enclosure = 0.805 CuFt; Large = CuFt
Sealed Enclosure = 0.805 CuFt; Large = CuFt
Port Diameter = 3.15 "e;
Mounting Hole Diameter: 7.25"e;
Port Length = 11.8 "e;
Dimensions (H x L x W): 3.5"e; x 8.25"e; x 8.25"e;