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Sundown Audio MD18D1

4000W Peak (2000W RMS) 18" M Series Dual 1-ohm Subwoofer

Only 2 Left!
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• Peak Power: 4000 watts
• RMS Power: 2000 watts
• Impedance: Dual 1 ohm
• Polypropylene Cone
• High Roll Foam Surround
• Mount depth: 14.05"
• Sensitivity: 85.836 dB

Learn more about the m18d1
Was $719.99 Details
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$599.99

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Description


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Authorized dealer

Product Details:

  • 18" Dual 1 ohm M Series Subwoofer
  • Power Handling:
    • Peak: 4000 watts
    • RMS: 2000 watts
  • Polypropylene Cone
  • Mega High Roll Foam Surround
  • Mega roll frame construction
  • Etched all back backplate design
  • High Temperature Copper Voice coil
  • 35 mm Xmax
  • Quad Stacked magnet motor structure
  • Resonance Frequency (Fs): 26.152 Hz
  • Sensitivity: 85.836 dB
  • Recommended ported box volume: 7.0 cubic feet
  • Top-mount depth: 14.05"
  • Cutout diameter: 16.68"
  • Authorized Internet Dealer
  • 1-year Manufacturer's Warranty

  • Priced Individually


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Specifications & Details


Subwoofer Specifications
Series
M Series
Subwoofer Size
18"
Peak Power Handling
4000 watts
RMS Power Handling
2000 watts
Voice Coil(s)
Dual
Impedance (Per Voice Coil)
1 ohm
Voice Coil Material
Copper
Sensitivity
85.836 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
No
Re-Cone Kit Available
No
CTA-2031 Compliant
No
Recommended Enclosure Specifications
Recommended Enclosure Type
Ported / Vented
Optimum Ported Box Volume
7.0 cubic feet
Top-Mount Depth (Mounting Depth)
14.05"
Cutout Diameter
16.68"
Shallow Mount Installation
No
Electromechanical Parameters
Free-Air Resonance (Fs)
26.152 Hz
Equivalent Compliance (Vas)
112.182 liters
Total Speaker Q Value (Qts)
0.684
Electrical Q Value (Qes)
0.782
Electrical Resistance of Voice Coil (Re)
2.12 ohm
Mechanical Q Value (Qms)
5.452
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

Item Details


Manufacturer:

Model Number:

SW-M18D1

Weight:

73.00lbs

Internal SKU:

m18d1

Internal Product ID:

206532

Customer Ratings & Reviews



5 star
100%
4 star
0%
3 star
0%
2 star
0%
1 star
0%



Durability
5
Value
5
Features
5
Design
5
Usability
5

Customer Reviews

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Sundown Audio M 18 D1

subwoofer Sundown Audio M18 is simply a magnificent subwoofer. low frequencies play very deep and powerfully. I liked Sundown Audio m18 even more than sundown audio xv3 18.

By Stanislav on July 9, 2025


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