• Expertly paired subwoofers, enclosure, and amplifier for optimal performance and synergy.
• Due to the nature of the items in this package, each item will be shipped individually.
• GP/Tru-Spec Enclosures assembled in the USA.
• Includes a FREE 2-Year Extended Accidental & Repair Warranty card that covers all electronics in this package.

Sundown Pair of 12" U-Series D4 Subs & FRP-3.5K-TI Amp w/ Dual Vented Enclosure

This Listing Includes:

• (2) U Series 12" dual 4 Subwoofers


• (1) Tru Spec Dual 12" vented Subwoofer Enclosure


• (1) DS18 FRP Monoblock 3500W 1-Ohm Amplifier


• (1) CPS Extended Accidental & Repair Warranty Card

Subwoofer Features:

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


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


• Double stitched surround


• Heavy duty cast baskets - all new, custom-tooled


• Spring loaded terminals accept up to 8 gauge


• Stitched-on double-XL tinsel leads


• Solid pole with vent channels and aluminum shorting ring cap


• 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

Subwoofer Specifications U12 D4:

• RE (Ohms): 6.0577


• FS (Hz): 41.9087


• VAS (L): 14.7535


• Qes: 0.5870


• Qms: 4.9022


• Qts: 0.5242


• Le (mH): 4.3694


• BL (NA): 31.1265


• Mms (Grams): 356.5462


• Cms (uM/N): 40.4498


• Sens (dB @ 1w/1m): 84.4191

POWER

• RMS Power @ 4-OHM: 1000W


• RMS Power @ 2-OHM: 2000W


• RMS Power @ 1-OHM: 3500W


• MAX Power @ 1-OHM (BURST): 4000W

AUDIO

• Frequency Response: 10Hz-20KHz


• Signal to Noise Ratio: 83dB


• Efficiency @ 4-Ohm: 809%


• Damping Factor: 90


• Input Impedance: 10K-Ohm


• Total Harmonic Distortion (THD): 05%


• Low Level Input Range: 400mv-36V

Selectable X-Over

• X-Over Filter Range: 40Hz-20KHz


• Bass Boost Range: 0-12dB


• Bass Boost Frequency: 50Hz

FEATURES

• Amplifier Class: Digital


• Amplifier Type Full-Range Monoblock


• Number of Channels: 1-CH


• Minimum Impedance: 1-OHM


• LED Indicator: Power / Protect / Clipping


• Power Input Terminal Size: 0-Ga


• Fuse Size: 300A


• Remote Level Control with Clip Indicator: Yes


• Cooling Fan: Yes (Smart Cooling x 2)


• Thermal Protection: Yes


• Over-Load Protection: Yes


• Short Circuit Output Protection: Yes


• Voltage Input Protection: Yes


• Clipping Protection: Yes


• Compact Size for an Easy Installation in any Application


• Stable/Reliable Four Layers Traces PCB Design: Yes


• Surface Mount Component Technology: Yes


• Quality Control Verification using Audio Precision Instruments: Yes


• Tiffany RCA Terminal: Yes


• LED Clip Indicator: Yes


• Metal Knobs with Click Steps: Yes

MEASUREMENTS ( Amplifier)

• Overall Length: 10.2" / 260mm


• Overall Width: 5.5" / 140mm


• Overall Height: 2.36" / 60mm


• Heatsink Length: 9" / 228mm

Enclosure Specifications:

• Material Thickness: 0.75"


• Net Internal Volume: 3.50 ft3


• Tuning Frequency: 35 Hz


• Port Area: 52.00 inch2


• Cutout Diameter: 11.20"


• Flush Trim Diameter: 13.10"

Enclosure External Dimensions:

• Length: 34.00"


• Depth: 14.00"


• Height: 22.00"