• Elevate your car audio with the Sundown U Series v.2 Subwoofers and Apocalypse ATOM 3.5K PRO Amplifier Combo.
• Dynamic duo for exceptional bass and powerful amplification.
• Superior heat dissipation with black aluminum 3" voice coil.
• Versatile audio shaping with Apocalypse ATOM 3.5K PRO's filters.
• Experience powerful, customized, and crystal-clear car audio.

Sundown Audio U-Series V.2 1750W Peak Dual Voice Coil Subwoofers

This Listing Includes:

• (2) Sundown Audio U-Series 12" 4 Ohm DVC Subwoofer


• (1) Apocalypse ATOM 3.5K PRO Power Amplifier


• (1) Apocalypse ATOM Voltmeter & Bass Knob

Immerse yourself in the pinnacle of car audio excellence with the dynamic combo of the Sundown U Series v.2 12" Subwoofer and the Apocalypse ATOM 3.5K PRO Monoblock Amplifier.

Experience the perfect harmony of exceptional bass from the Sundown U Series v.2 Subwoofer and powerful amplification with the Apocalypse ATOM 3.5K PRO Monoblock Amplifier – a combination designed to redefine your car audio journey.

Features Speaker:

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


• Double-stitched surround and heavy-duty cast baskets.


• Spring-loaded terminals accept up to 8 gauge.


• Optimized for small ported or bandpass enclosures.


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

Specifications Speaker:

• Model: U Series v.2 12" Subwoofer.


• RE (Ohms): 3.8407 / 6.0577.


• FS (Hz): 41.3260 / 41.9087.


• VAS (L): 14.7612 / 14.7535.


• Qes: 0.4862 / 0.5870.


• Qms: 4.7454 / 4.9022.


• Qts: 0.4410 / 0.5242.


• Le (mH): 3.1858 / 4.3694.


• BL (NA): 27.2694 / 31.1265.


• Mms (Grams): 358.6438 / 356.5462.


• Cms (uM/N): 40.4709 / 40.4498.


• Sens (dB @ 1w/1m): 85.1980 / 84.4191.

Features Amplifier:

• High RMS power for dynamic bass output.


• Tailored bass control for customized sound.


• Versatile audio shaping with multiple filters.


• Compact, efficient Class D technology.


• Crystal-clear audio with superior signal quality.

Specifications Amplifier:

• Model: ATOM 3.5K PRO.


• Class: D.


• Channels: 1.


• Frequency Response: 10 - 250 Hz.


• RMS Power (14.4 V): 3500W at 1 Ohm, 2900W at 12V, 2200W at 2 Ohm, 1210W at 4 Ohm.


• Minimum Permissible Load: 1 Ohm.


• Low Pass Filter: 80 - 20000 Hz, 12 dB/Oct.


• Subsonic Filter: 10 - 80 Hz.


• Bass Frequency Adjustment: 35 - 90 Hz.


• Input Terminal: 0 Ga.


• Output Terminal: 4 Ga.


• Working Voltage: 9 - 15 V.


• Signal-to-Noise Ratio: â 85 dB.

Dimensions Amplifier:

• Size (WxLxH): 10 x 8.6 x 2.6 inches