Like New (Open Box) - Sundown Audio SW-M10D2 10" M Series Dual 2-ohm Subwoofer (Open Box, Like New)

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Product highlights

• Peak Power: 4000 watts
• RMS Power: 2000 watts
• Impedance: Dual 2 ohm
• Polypropylene Cone
• High Roll Foam Surround
• Mount depth: 10.09"
• Sensitivity: 79.14 dB

Learn more about the m10d2_obn

Description

Authorized dealer

Item Condition - Like New (Open Box):

This product works and looks like new. It may have been opened for a visual demo or product video. In some cases there may be signs of an attempt at installation like opened packaging or mounting screw holes used, but there is no real sign of use or wear. Includes all original parts, packaging and accessories (or suitable replacement)

Sundown Audio M-10 D2 10" (M10D2)

4000W Peak (2000W RMS) 10" M Series Dual 2-ohm Car Subwoofer (SW-M10D2)
Quantity: 1

Product Details:

10" Dual 2 ohm M Series Subwoofer
Power Handling:

Peak: 4000 watts
RMS: 2000 watts

Polypropylene Cone
High Roll Foam Surround
Laser-etched all black backplate design
Custom tooled and patented mega roll frames
Built for intense bass with stellar low-frequency performance
Special M-series magnet boot design
Features a hyper-extended pole and extreme clearances
3" High Temperature Aluminum Voice coil
4-layer round wire voice coil on thick aluminum former
High-velocity pole vent and a heavily vented magnetic gap
Proprietary high-velocity cast-aluminum frame-base venting system
Proprietary Sundown PG linear suspension (fully computer optimized)
35 mm Xmax
Quad Stacked magnet motor structure
Bolt-through motor design to ensure maximum longevity
Resonance Frequency (Fs): 37.736 Hz
Sensitivity: 79.14 dB
Recommended ported box volume: 1.5 cubic feet
Top-mount depth: 10.09"
Cutout diameter: 10.01"
Authorized Internet Dealer
1-year Manufacturer's Warranty

Priced Individually

Subwoofer Wiring Guide

Wiring Guide to Wire 1 Sundown Audio SW-M10D2 (Open Box, Like New) Subwoofer

Mono Amp

Mono Amp - Option 1

2 Channel Amp - Bridged

Wiring Guide to Wire 2 Sundown Audio SW-M10D2 (Open Box, Like New) Subwoofers

Mono Amp

2 Channel Amp

4 Channel Amp - Bridged

Wiring Guide to Wire 3 Sundown Audio SW-M10D2 (Open Box, Like New) Subwoofers

Mono Amp

Mono Amp - Option 1

4 Channel Amp

Wiring Guide to Wire 4 Sundown Audio SW-M10D2 (Open Box, Like New) Subwoofers

2 Channel Amp

4 Channel Amp

Specifications & Details

Subwoofer Specifications

Series

M Series

Subwoofer Size

10"

Peak Power Handling

4000 watts

RMS Power Handling

2000 watts

Voice Coil(s)

Dual

Impedance (Per Voice Coil)

2 ohm

Voice Coil Material

Copper

Sensitivity

79.14 dB

Xmax (millimeters)

35 mm

Subwoofer Design

Round / Circle

Main Cone Color

Black

Woofer Composition

Polypropylene

Woofer Surround

High Roll Foam

Magnet Structure

Quad Stacked

Subwoofer Grille

Re-Cone Kit Available

CTA-2031 Compliant

Recommended Enclosure Specifications

Recommended Enclosure Type

Ported / Vented

Optimum Ported Box Volume

1.5 cubic feet

Top-Mount Depth (Mounting Depth)

10.09"

Cutout Diameter

10.01"

Shallow Mount Installation

T/S Parameters (Electromechanical)

Free-Air Resonance (Fs)

37.736 Hz

Equivalent Compliance (Vas)

7.793 liters

Total Speaker Q Value (Qts)

0.658

Electrical Q Value (Qes)

0.761

Electrical Resistance of Voice Coil (Re)

4.19 ohm

Mechanical Q Value (Qms)

4.847

What is in the box?

WITB: Subwoofers

Subwoofer

Warranty and Return Policy

Parts Warranty Duration

1 year

Labor Warranty Duration

1 year

Warranty Provider

Manufacturer

Customer Ratings & Reviews

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By feature average rating

Durability		5
Value		4.5
Features		5
Design		5
Usability		5

Customer Photos & Videos

Customer Reviews

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Not like any 10's I've ever heard

The following review is for SW-M10D2, which is a part of the bundle you are viewing.

Wanted to try the M-Series. The X's were our go-to, but these M's are pretty much on the same level. Had to go with 10's due to space but ended up not being a compromise at all. Anything in the high 20's to mid 30's frequency really shines and has resulted in just having to remove the rear view mirror to keep it from continuously falling. It was unusable anyway because it instantly just pointed straight down after a few seconds.

Installed 2 of these in 3 cube box net, port tuned to 32hz. Pretty much followed exact manufacturer specs. Powering these with two 2300w amps at 1ohm each. One on each sub. They seem very happy with that power and haven't complained once. Of course make sure the electrical for supporting that is good to go.

One note, the "weight" on Sonic's specs is a bit light. These subs are heavy and the weight listed on the manufacturer box says 55lbs, per sub. Sonic had 25lbs at my time of purchase.

One last tip on mounting. Sundown mounting rings seem to mount perfectly with SPAX cabinet screws. I used the 2" screws to mount to a double 3/4 plywood baffle. I struggled a bit finding the perfect screw.

Sonic shipping was stupid fast and the subs arrived in perfect condition.

By Pete on September 6, 2025 Checkmark Icon

Verified purchase