Sundown Audio Combo Pair of U-Series V.2 12" DVC Subs w/Marts Digital Amp 3500w

• Elevate your car audio with Sundown Audio U-Series V.2 12" Subwoofer.
• Premier "standard suspension" woofer series with improved performance.
• Black Aluminum 3" voice coil for superior heat dissipation.
• Heavy-duty cast baskets, stitched double-XL tinsel leads for durability.
• Optimized for small ported or bandpass enclosures, delivering powerful bass.
• Experience 3500 Watts at 1 Ohm - with the Marts Digital MP-3500-1 Monoblock Amplifier.
• Class D amplifier design - redefining audio quality for an immersive and high-performance sound experience.
• Global audio excellence - Marts Digital amplifiers transcend boundaries, offering an audio adventure from Brazil to the world.
• Amplifier specifications for optimal performance - RMS 1 OHM: 1CH x 3600W, THD: 0.25%, LPF: 80Hz-20kHz, Sub Sonic: 10Hz - 60Hz.
• Wide frequency response: 10Hz - 20kHz - ensuring a comprehensive audio range.

This listing includes:

• (1) Marts Digital Monoblock Amplifier 3500 Watts 1-Ohm 1-Channel Class-D MP-3500-1


• (2) Sundown Audio U-Series V.2 12" Subwoofers

Embark on an exciting audio journey with our exclusive Combo: The Marts Digital Premium Monoblock Amplifier, MP-3500-1, paired seamlessly with the Sundown Audio U-Series V.2 12" Subwoofer. Marts Digital amplifiers redefine audio quality, offering an immersive experience without limits. Elevate your car audio with the Sundown Audio U-Series V.2 12" Subwoofer, a premier "standard suspension" woofer series that enhances its predecessor's incredible performance. Featuring a black aluminum 3" voice coil for heat dissipation, heavy-duty cast baskets, and stitched double-XL tinsel leads for durability, this subwoofer excels in small ported or bandpass enclosures. Together, the Marts Digital Premium Monoblock Amplifier and Sundown Audio U-Series V.2 12" Subwoofer create a powerful and precise audio combo, ensuring an upgraded and immersive sound experience for your car audio system.

Amplifier Specifications:

• RMS  1 OHM:  1CH x 3600W


• RMS  2 OHM:   1CH x 2520W


• RMS  4 OHM:   1CH x 1500W


• THD:  0.25%


• LPF:   80Hz-20kHz


• Sub Sonic: 10Hz - 60Hz


• Frequency Response:  10Hz - 20kHz


• S/N:  83dB

Dimensions Amplifier: (in inches)

• (LxWxH): 10.5 x 11.5 x 3


• Weight: 9.56 lbs

Features speakers:

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


• Heavy-duty cast baskets with custom-tooled design.


• Stitched double-XL tinsel leads for durability.


• Optimized for small ported or bandpass enclosures.


• Innovative features like rear drilled gap-venting and vented frame spacer ring.

Specifications speakers:

• Model: U-Series 12" Subwoofer.


• Peak Power: 1750W.


• Voice Coil: Dual 4 Ohm.


• 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.

Accepted Payment Methods at Big Jeff Audio

At Big Jeff Audio, we strive to make your shopping experience as smooth as possible by offering a wide variety of payment options. Below is a complete list of the payment methods we accept:

Credit and Debit Cards

• Visa
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• American Express
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International Payment Methods

• Bancontact
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Bank Transfers

• Zelle

Financing Options

We also offer financing options to make purchasing easier. Learn more about our financing options here.

• Klarna
• Affirm
• Sezzle
• Snap
• Acima
• Tiptop

If you have any questions or need assistance with payments, feel free to reach out to us at info@bigjeffaudio.com or call us at 737-BIG-JEFF.

Shipping Options and Delivery Time

Do You Offer Expedited Shipping?

Yes! At checkout, you can select from different shipping options:

• Standard Shipping: Free for orders over $100.
• Expedited Shipping: Available at an additional cost, calculated based on the weight and destination of your order.

How Long Does Delivery Take?

• Handling Time: Most orders are processed and shipped within 1 business day after receiving cleared payment. Occasionally, additional handling time may be required, but we’ll notify you if that’s the case.
• Standard Shipping: Typically takes 3-5 business days, though delivery may be affected by extreme weather or holidays.

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