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SDR-18 D2

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 29 reviews
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V
V.
Awesome Subwoofer !!!

Great Subwoofer For The Price

J
J.
Pounds

I have this sdr-18 in the back of my 95 300zx, custom sealed box, it pounds, I love it

J
J.
My first build and love skar audio

So this is my first build ever. I did all the work myself. Took me about 2 months. Did a custom install with the skar rp1500 with a led fan in the side compartment of my tahoe. Built a 10 cf box with baltic birch,triple baffle,my own design box interior with birch and poplar.ebony stain. Cut out a skar logo out of plywood,sanded and painted.clear coated.i did all this with a jig saw and sawzall. installed 2 18" sdr 4ohm subs. Wired to 1 ohm.Installed a 300amp altenator along with the big 3 0 gauge upgrade. My set up hits so hard it makes my chest hurt. My friends can hear me coming a few blocks away.Im definitely impressed and will be a skar customer for life.

J
J.R.
Amazing Sub!!

I have had this installed in my 04 Grand Cherokee for about 2 weeks and I am very impressed! Could not ask for a better deal for this price!

L
L.
Infinite Baffle

I put two of these in my car in infinite baffle and they hit hard! I can play them down to 19 hrz as well on 550rms total. 120db+ all across and people can hear you across a large intersection if that's your thing. What I really love is when they barely play and appear not to move but sound good tonality wise.
They responded respectable on fast kick drums to, could be a bit faster but 18's but don't get me wrong as most people won't notice.
Love skar, price to performance is off the charts. I just need to replace my 6x9s with 8" mids and I'll be very happy with Skar products all the way around!

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