Sundown Audio U-Series v.2 12" Subwoofers w/Apocalypse ATOM 3.5K PRO Amp Combo

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