• Black Aluminum 3 voice coil former for superior heat dissipation
• High Temperature Round-Wire CCAW voice coil with high-temp black adhesive
• Double stitched surround
• Spring loaded terminals accept up to 8 gauge
• Cast Aluminum surround bolt-on rings

Sundown Audio U Series 12" 4 Ohm DVC 1500 Watts RMS Car or Truck Subwoofer U-12-D4

This listing includes:

• (1) Sundown Audio 12 Subwoofer U-12-D4

The Sundown U Series is the premier standard suspension series. It is the most direct replacement for the world famous Z v.3 woofer line which we produced from 2011 to 2016 before launching the new platform Z v.4 series. Due to numerous advancements in Sundown's design process the U Series is able to deliver performance on-par with the Z v.3 series but at a much lower cost.

Sundown Audio started with a double-stacked / 8.66 wide Y35 grade ferrite magnet system coupled to a one-piece, bumped T-Yoke and a 0.6 thick top-plate. Just as with the Z v.3 before it and their other high-end subwoofers they added a very thick (5 mm) aluminum shorting ring inside the magnets to reduce static inductance and level out inductance over stroke. The U series motor also features a 0.6 long pole-extension to keep the coil under control at high levels of excursion.

Features:

• - Black Aluminum 3 voice coil former for superior heat dissipation


• - High Temperature Round-Wire CCAW voice coil with high-temp black adhesive


• - Double stitched surround


• - Heavy duty cast basket


• - Spring loaded terminals accept up to 8 gauge


• - Stitched-on double-XL tinsel leads


• - Rear vented pole piece


• - Rear drilled gap-venting


• - Innovative high-velocity cast aluminum vented frame spacer ring


• - Magnet ID shorting ring


• - Top-Plate Cooling Channels


• - Cast Aluminum surround bolt-on rings


• - Optimized for small ported or bandpass enclosures

SPECIFICATIONS:

• 1500 Watts RMS Power


• Linear X-Max by 70% BL: 30 mm one-way


• Mounting Depth: 7.75"


• Mounting Diameter: 11.10"


• Outside Diameter: 12.83"


• Magnet Diameter: 8.66"


• RE (ohms): 6.1


• FS (Hz): 40.0


• Vas (L): 12.3


• Qes: 0.38


• Qms: 2.93


• Qts: 0.34


• Le (mH): 3.67


• BL (NA): 33.7


• Mms (Grams): 284.5


• Cms (uM/N): 0.06


• Sens (dB @ 1w/1m): 85.0 dB


• ENCLOSURE SPECIFICATIONS


• Sealed Enclosure: 1.0 cu ft


• Ported Enclosure: 2.0 cu ft


• Recommended Tuning: 35Hz


• Recommended Port Area: 32 sq in


• Displacement: 0.21 cu ft


• Depth: 7.75


• Outside Diameter: 12.83


• Cut-Out: 11.01