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Sundown Audio SD-4 Compact High Performance 12-inch Subwoofer - Sundown SD-4,Dual 2-Ohm
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Sundown Audio SD-4 Compact High Performance 12-inch Subwoofer

Key Features:

12-inch Subwoofers

This item is a "Package Only" Product

What does this mean? Well, not all products are for the average DIY installers. Without proper training on the product, the test equipment for accurate setup, we restrict the sale of certain products for the trained professionals.

Our team is dedicated to offer products that are designed to improve the performance of your system, but we have to set boundaries of the capabilities of not only DIY consumers, but also not all shops/retailers/installers have the proper capabilities/training to provide you the performance necessary for this product.

If you would like to experience this product, look into our Plug & Play Packages along with our bundles that we offer. These are packages are personally curated by our team and provide a high level of performance from this product. Any questions, please contact our team.

Xmax = 14.5mm one-way by 70% BL

RMS Power = 600-watts (400-watts for the 8” model)

Under-Hung low distortion motor topology

Solid pole piece with chamfered edges

Black Aluminum 2.5” voice coil former for superior heat dissipation

High-Temperature 8-Layer copper voice coil wire

Large aluminum faraday ring (Pole Base OD)

Spring Loaded Terminals

Stitched-On Tinsel Lead Wires

Optimized for small sealed enclosures

Computer Optimized Foam “W” Surround

High-strength cast aluminum frames (8” model features US Patent D691595)

SD-4 12"

Sealed Enclosure 0.8-1.0 cu ft
Ported Enclosure Not Recommended
Recommended Tuning N/A
Recommended Port Area N/A
Displacement 0.1 cu ft
Depth 4.91″
Outside Diameter 12.51"
Cut-Out 10.94"
Physical Dimensions Download
T/S SPECS SD-4 12″ D2 SD-4 12″ D4
RE (Ohms) 3.93 7.01
FS (Hz) 26.0429 26.7489
VAS (L) 63.5142 64.3194
Qes 0.6187 0.7374
Qms 5.4253 5.5061
Qts 0.5554 0.6503
Le (mH) 6.2790 8.6610
BL (NA) 14.9216 17.9033
Mms (Grams) 214.4713 200.7540
Cms (uM/N) 174.1371 176.3448
Sens (dB @ 1w/1m) 84.33 83.97
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