Sundown Audio U-6.5 V.1 D4 6.5" 500w RMS Car Subwoofer DVC 4-Ohm Car Audio Sub

Features:

• 500 Watts RMS/1000 Watts Peak
• Dual 4 ohm
• Optimized for small ported enclosures
• Aluminum 1.75” voice coil former for superior heat dissipation
• High-temperature copper voice coil
• Double stitched surround
• Heavy-duty cast basket
• Spring-loaded terminals accept up to 8-gauge wire
• Stitched-on heavy-duty tinsel leads
• Solid pole with vent channels and aluminum shorting ring cap
• Rear gap-venting
• Top-Plate Cooling Channels

Specifications:

• RE (Ohms): 6.6274
  
• FS (Hz): 38.6925
  
• VAS (L): 3.7701
  
• Qes: 0.5005
  
• Qms: 7.247
  
• Qts: 0.4681
• Le (mH): 5.5892
• BL (NA): 20.0082
• Mms (Grams): 124.3518
• Cms (uM/N): 136.0613
• Sens (dB @ 1w/1m): 78.1460
• Xmax: 19mm

Subwoofer Measurements:

• Displacement (Inches): 0.04
• Depth (Inches): 5.71"
• Cutout (Inches): 5.94"
• Motor Diameter (Inches): 5.51

Ported Enclosure Specs:

• Ported Enclosure Size: 0.25 cu ft
• Recommended Port Area: 4-5 sq in
• Recommended Port Tuning: 35hz

Sealed Enclosure Specs:

• Sealed Enclosure Size: 0.125 cu ft

4th Order Enclosure Specs:

• 4th Order Sealed Side: .09cu ft
• 4th Order Ported Side: 2.25cu ft
• 4th Order Port Area: 5.5sq in
• 4th Order Port Length: 6"