SX18D4 - RE Audio 18" 1000W RMS Dual 4-Ohm SX Series Subwoofer
- SKU #: 92776
- 18" Dual 4 ohm SX Series Car Subwoofer
- Power Handling:
- RMS: 1000 watts
- Impedance: 4 ohm
- Dual composite 2-piece cone
- Rubbertek Foam Surround
- Tork-Tite terminals
- Cast aluminum basket
- 3" 8-layer aluminum voice coil
- Triple stack magnets
- Hand-built in the USA
- Mounting Depth: 9.5"
- Mounting Hole Diameter: 16.75"
- Overall Diameter: 18.5"
- Bolt Hole Circle: 17.5"
- Motor Width: 6.5"
- Motor Depth: 3.25"
- Basket Depth: 6.25"
- Displacement: 0.22 cu. ft.
- Weight: 28 lbs.
- Electrical Q Value -Qes: 0.53
- Mechanical Q Value -Qms: 6.1
- Total Speaker Q Value -Qts: 0.48
- Free Air Resonance -Fs: 33.2 Hz
- Equivalent Compliance -Vas: 159 liters
- One-Way, Linear Excursion -Xmax: 22 mm
- Efficiency -SPL 1W/1m: 92.7 dB SPL
- Effective Piston Area -Sd: 1210 cm^2
- DC Resistance -Re: 1.9 ohm
- Nominal Impedance -Znom: Dual 4 ohm
- Thermal Power Handling -Pe: 1000 W
- Force Factor -Bl: 21
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