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Sundown Audio M-18 D1 18" (M18D1) (Open Box, Great)

4000W Peak (2000W RMS) 18" M Series Dual 1-ohm Car Subwoofer (SW-M18D1)

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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: 85.83 dB

Learn more about the ls-m18d1-u8

We apologize

This item has been discontinued

Description


Sundown Audio brand icon

Authorized dealer

Item Condition - Open Box, Great:

This product works like new, is well-cared-for and in great condition. May show limited signs of wear or use and may be missing non-essential parts, accessories or original packaging.


Sundown Audio M-18 D1

The Sundown M-Series is an all-new "entry-level" subwoofer in Mega series - all Mega series subwoofers (10,12,15,18) feature custom tooled and patented frames (US Patent Numbers D691596, D691597, D691598, and D741841) and Mega-Roll surround. For the M-series, Sundown mate out Mega series frames to a quad stacked 200mm (7.87”) diameter motor structure with a total magnet stack height of 88mm (3.46”) featuring a hyper-extended pole and extreme clearances (allowing 59.5mm to mechanical bottom effectively making it bottomless - this is 4.68" peak-to-peak). Sundown always do things to the extreme so even "entry" level M-series features a full 20mm thick top-plate to finish the efficient magnetic circuit.


Product Details:

  • 18" Dual 1 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): 26.152 Hz
  • Sensitivity: 85.83 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

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
Aluminum
Voice Coil Diameter
3"
Sensitivity
85.83 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
T/S Parameters (Electromechanical)
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-M18D1-2

Weight:

73.00lbs

Internal SKU:

ls-m18d1-u8

Internal Product ID:

230146

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