Sundown Audio U-Series v.2 12" Subwoofers w/Apocalypse ATOM 3.5K PRO A — Big Jeff Online Inc
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Sundown Audio U-Series v.2 12" Subwoofers w/Apocalypse ATOM 3.5K PRO Amp Combo

Save 13% Save 13%
Original price $1,379.88
Original price $1,379.88 - Original price $1,379.88
Original price $1,379.88
Current price $1,195.95
$1,195.95 - $1,195.95
Current price $1,195.95
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This is a Sample Product Title
Was $200.00 Now $100.00
  • 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

Payment Information


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All orders over $500 will require a signature for delivery.

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valid residential or commercial address within the Contiguous 48 United
States (PO Boxes address may require additional charges).

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and other countries may require additional shipping fees. Please contact
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payment. In some circumstances additional time may be need, in which
case we will contact buyer.

Shipped orders that are returned by the shipping company due to an
insufficient address or an undeliverable address will be refunded less a
20% restocking fee.

If package is refused or marked undeliverable and returned
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minus the cost of shipping


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please do the following within 36 hours of expected, stated delivery:


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Once we have a police report on file for the stolen package, we will reship your order.

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