Is the XV4 12 worth it over the SA series?

The XV4 is a step up in power handling and excursion over Sundown's SA line, aimed at louder SPL builds. If you run under about 1500W, the SA is the better match.

What size box does the XV4 12 need?

Sundown specs recommend a ported enclosure, typically around 2 to 2.5 cu. ft net tuned near 32-35 Hz. It needs 11.75 inches of mounting depth plus clearance for the motor.

What amplifier power should I use?

Plan for 3000W RMS at 2 ohms, with clean power and a subsonic filter. Low 83.47 dB sensitivity means a weaker amp will not get it loud.

Can I wire the dual 1-ohm coils to 1 ohm?

No. Two 1-ohm coils wire in parallel to 0.5 ohm or in series to 2 ohms. Use the 2-ohm series wiring unless your amp is stable at 0.5 ohm.

The subwoofer only. Gaskets, screws and terminal hardware are not included, so plan on buying mounting hardware separately.

Sundown Audio XV4 XV412D1 12" Dual 1 Ohm Subwoofer

Last price we saw

$799.99at Amazon, last seen Nov 3

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Our take on the Sundown Audio XV4 XV412D1 12" Dual 1 Ohm Subwoofer

The Sundown Audio XV4 12 is a competition-grade car subwoofer rated at 3000W RMS and 6000W peak, with a dual 1-ohm voice coil that wires to a 2-ohm load. Its 30mm Xmax and 11.75-inch mounting depth point to a heavy motor built for deep, loud bass in a ported box. Sensitivity is low at 83.47 dB, so it needs real amplifier power. It suits SPL and daily-bass builds, not stock electrical systems.

Best forSPL and competition bass buildsDaily drivers with high-output amps and upgraded electricalPorted or large sealed enclosures tuned lowOwners wiring to a 2-ohm final load

Pros

3000W RMS rating handles serious amplifier power
30mm Xmax allows long excursion for deep bass
Dual 1-ohm coils wire to a 2-ohm final load
Stiff competition-style motor and suspension
Displacement of only 0.23 cu. ft leaves box volume for the port

Cons

Sundown Audio XV4 XV412D1 12" Dual 1 Ohm Subwoofer prices at every store

AmazonCheck price at Amazon

Sundown Audio XV4 XV412D1 12" Dual 1 Ohm Subwoofer price history

Lowest price we've seen: $799.99 on Nov 3 at Amazon. Tracked across 1 store since Nov 3.

What reviewers say

Owners of Sundown's XV line generally report it takes rated power and plays very loud without bottoming out in a properly built box. Most complaints center on the power and space it demands rather than sound quality.

Pros

Handles rated power without mechanical noise
Very loud output for the money
Solid build quality and terminals

Cons

Needs a large, well-braced enclosure
Demands high-current electrical upgrades
Low sensitivity makes cheap amps struggle

Specifications

color: BlackSource

Questions and answers

Is the XV4 12 worth it over the SA series?: The XV4 is a step up in power handling and excursion over Sundown's SA line, aimed at louder SPL builds. If you run under about 1500W, the SA is the better match.
What size box does the XV4 12 need?: Sundown specs recommend a ported enclosure, typically around 2 to 2.5 cu. ft net tuned near 32-35 Hz. It needs 11.75 inches of mounting depth plus clearance for the motor.
What amplifier power should I use?: Plan for 3000W RMS at 2 ohms, with clean power and a subsonic filter. Low 83.47 dB sensitivity means a weaker amp will not get it loud.
Can I wire the dual 1-ohm coils to 1 ohm?: No. Two 1-ohm coils wire in parallel to 0.5 ohm or in series to 2 ohms. Use the 2-ohm series wiring unless your amp is stable at 0.5 ohm.
What is in the box?: The subwoofer only. Gaskets, screws and terminal hardware are not included, so plan on buying mounting hardware separately.