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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 101 reviews
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E
E.R.
18'

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

H
H.M.
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
R.G.
...

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.

J
J.
Oddly satisfying

This is more of an edit to a previous review but it wouldn't let me edit. FINALLY got around to getting about 3/4 finished with the infinite baffle setup in my Prelude and even with all the gaps the still need sealed.....it bangs!

J
J.V.
Toyota REX slamming

Bought two of these 18” subs to give them a try. I’ve been very dedicated for over twenty years to other brands. I thought I would buy some middle of the road subs from soar and see what happens. Well let me tell ya I’m shocked. Built a 4th order band pass box and holy crap. I’m running one Rockford 1200.1 at 1 ohm per sub. Box is tuned at (rear 29 Hz) (Front at 50 Hz) needless to say they slam hard and have been for months now. I will have to upgrade my alternator and add batteries but considering I’m still building it out and have a lot left it does hit hard. Metered at 153db.

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