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SA-Classic 12" Subwoofer

1000 Watt RMS/ 2000 Watt Peak Dual 2 or 4 ohm voice coils Optimized for small ported, sealed, & band-pass enclosures Large aluminum Faraday ring for smooth acoustic response High strength cast aluminum frame Low distortion motor construction High-temperature voice coil wire Spring-loaded terminals Stitched-on “XL” tinsel lead wires The SA Classic sub is a stunning combination of value, power handling, and deep excursion. It features a cast aluminum frame that houses a bulletproof custom 2.5-inch voice coil, robust double-layered Nomex spider, and SPL competition-grade paper cone. These components are built into a flexible design that works well in any type of enclosure. Specifications T/S SPECS SA CLASSIC 12" D2 SA CLASSIC 12" D4 RE (Ohms) 4.57 7.07 FS (Hz) 33.71 33.96 VAS (L) 21.21 24.63 Qes 0.58 0.55 Qms 5.34 5.15 Qts 0.52 0.49 Le (mH) 3.40 4.84 BL (NA) 21.64 25.67 Mms (Grams) 280 237 Cms (uM/N) 79.43 92.27 Sens (dB @ 1w/1m) 83.21 84.22 Xmax 19mm 19mm Enclosure Specifications SA CLASSIC 12" Sealed Enclosure 1.0 cu ft Ported Enclosure 1.75 cu ft Recommended Tuning 35Hz Recommended Port Area 26 sq in Displacement 0.14 cu ft Depth 6.5″ Outside Diameter 12.625″ Cut-Out 11.125″ Physical Dimensions Download Enclosure Designs .Zip File

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Specifications

rms watts

1000 W

impedance ohms

2 Ω

voice coil config

DVC

Thiele-Small Parameters

Measured at small signal levels per AES standards

Impedance:

Electromechanical

F_s(Resonant frequency)

33.71 Hz

R_e(DC resistance)

4.57 Ω

L_e(Inductance)

3.4 mH

BL(Force factor)

21.64 T·m

Q Factors

Q_ts(Total Q)

0.52

Q_es(Electrical Q)

0.58

Q_ms(Mechanical Q)

5.34

Compliance & Mass

V_as(Equiv. volume)

21.21 L

M_ms(Moving mass)

280 g

C_ms(Compliance)

0.0794 mm/N

Excursion

X_max(Linear excursion)

19 mm

Parameters measured per AES2-1984 (r2003) standards. Small-signal parameters valid within linear operating region.

Where to Buy

Updated 7/19/2026

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Frequently Asked Questions

What is the Sundown Audio SA-Classic 12" Subwoofer?

The Sundown Audio SA-Classic 12" Subwoofer is a car audio equipment made by Sundown Audio. View full specifications and where to buy on this page.

How much does the Sundown Audio SA-Classic 12" Subwoofer cost?

The Sundown Audio SA-Classic 12" Subwoofer typically sells for $90 to $340 depending on the retailer and variant. Check the "Where to Buy" section for current pricing from authorized dealers.

Where can I buy the Sundown Audio SA-Classic 12" Subwoofer?

You can purchase the Sundown Audio SA-Classic 12" Subwoofer from authorized dealers listed in the "Where to Buy" section on this page. We recommend buying from authorized retailers to ensure warranty coverage and genuine products.