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SDR-18 | 18" 1,200 Watt Max Power Car Subwoofer

Coil Configuration
  • The Skar Audio SDR-18 D2 was designed to offer the ultra low end bass frequency response only capable of being produced by a larger subwoofer of this size. Featuring a conservative rating of 1,200 watts max power, this 18-inch car subwoofer does just that, thanks to its high temperature 2.5-inch copper voice coil and high flux ferrite motor. The engineering considerations that went into developing this 18-inch subwoofer are extensive, and contribute to why the SDR series has continued to be one of the most popular subwoofer lines we have ever released.

    When looking for a subwoofer that delivers low end frequencies with authority, look no further. This is the perfect solution for a 600-1,200 watt daily driver that can handle whatever is thrown at it, offering unmatched reliability and sound quality. Featuring a sleek and attractive red spider system, paired with its competition grade paper cone and high roll foam surround, this subwoofer is going to impress the listener every time it is playing.

    RMS Power Handling 600 Watts
    Peak Power Handling 1,200 Watts
    Voice Coil Size 2.5"
    Voice Coil Configuration Dual 2 Ω
    • 18-inch Dual 2 Ohm Voice Coil Configuration
    • Peak Power: 1,200 Watts
    • RMS Power: 600 Watts
    • Competition Grade Pressed Paper Cone
    • High Roll Foam Surround
    • Advanced Air Flow Cooling System
    • 2.5" High Temperature Copper Voice Coil
    • Motor Weight: 97 oz
    • Frequency Response: 18 - 250 Hz
    • Sensitivity: 87.3 dB
    • Fs: 24 Hz
    • Re: Dual 2 Ω
    • Qms: 4.68
    • Qes: 0.8
    • Qts: 0.69
    • Mms: 413.0 gr
    • Nref: 0.33%
    • Cms: 0.107 mm/N
    • Bl: 17.11 n/a
    • Vas: 206.0 L
    • Sd: 1164.1 cm²
    • Xmax: 13.5 mm
  • Recommended Enclosure Specifications
    • Recommended Sealed Volume: 2.75 ft³
    • Recommended Ported Volume: 4.60 ft³
    • Recommended Port Area: 64.75 in²
    • Recommended Tuning Frequency: 32 Hz
    • Enclosure recommendations above do not include subwoofer, bracing, and port displacement
    Subwoofer Measurements
    Cut-out Diameter 16.77"
    Mounting Depth 8.00"
    Total Height 9.33"
    Outside Diameter 18.28"
    Magnet Diameter 6.00"
  • The Skar Audio SDR-18 D4 was designed to offer the ultra low end bass frequency response only capable of being produced by a larger subwoofer of this size. Featuring a conservative rating of 1,200 watts max power, this 18-inch car subwoofer does just that, thanks to its high temperature 2.5-inch copper voice coil and high flux ferrite motor. The engineering considerations that went into developing this 18-inch subwoofer are extensive, and contribute to why the SDR series has continued to be one of the most popular subwoofer lines we have ever released.

    When looking for a subwoofer that delivers low end frequencies with authority, look no further. This is the perfect solution for a 600-1,200 watt daily driver that can handle whatever is thrown at it, offering unmatched reliability and sound quality. Featuring a sleek and attractive red spider system, paired with its competition grade paper cone and high roll foam surround, this subwoofer is going to impress the listener every time it is playing.

    RMS Power Handling 600 Watts
    Peak Power Handling 1,200 Watts
    Voice Coil Size 2.5"
    Voice Coil Configuration Dual 4 Ω
    • 18-inch Dual 4 Ohm Voice Coil Configuration
    • Peak Power: 1,200 Watts
    • RMS Power: 600 Watts
    • Competition Grade Pressed Paper Cone
    • High Roll Foam Surround
    • Advanced Air Flow Cooling System
    • 2.5" High Temperature Copper Voice Coil
    • Motor Weight: 97 oz
    • Frequency Response: 18 - 250 Hz
    • Sensitivity: 86.7 dB
    • Fs: 24 Hz
    • Re: Dual 4 Ω
    • Qms: 4.99
    • Qes: 0.59
    • Qts: 0.76
    • Mms: 428.8 gr
    • Nref: 0.29%
    • Cms: 0.104 mm/N
    • Bl: 10.69 n/a
    • Vas: 200.0 L
    • Sd: 1164.1 cm²
    • Xmax: 13.5 mm
  • Recommended Enclosure Specifications
    • Recommended Sealed Volume: 2.75 ft³
    • Recommended Ported Volume: 4.60 ft³
    • Recommended Port Area: 64.75 in²
    • Recommended Tuning Frequency: 32 Hz
    • Enclosure recommendations above do not include subwoofer, bracing, and port displacement
    Subwoofer Measurements
    Cut-out Diameter 16.77"
    Mounting Depth 8.00"
    Total Height 9.33"
    Outside Diameter 18.28"
    Magnet Diameter 6.00"
 

Customer Reviews

Based on 105 reviews
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d
damion dixon
3 SDR 18s

I must say these things SLAM!!! Even in the break in period I will always continue to buy skar audio

D
Donald Clifford
Powerful Sound

Got 2 of them in a 2013 Ford Focus. Sounds Amazing!

E
Emile Russell
18'

I got my box looking good like putting rims on a ugly car my 18' Skyar subwoofer makes my box look sexy

H
Henry Moscati
Wow

Ordered sdr 18 and rp800.1 and got delivered in 2 days. Made a box and got everything wired and it sounds crazy for just a 600 watt sub. First skar purchase will not be the last god bless u skar 🥰🥰😆😆😆

R
Robert Gonzales
...

Haven't pushed it to it's potential but it sounds DEEP.......I made this in 45min and the enclosure flexed too much to bring out the sound...
I have more pics that show the process.

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