Congratulations on your purchase of a SOUND STORM engineered and manufactured in the USA to the highest enjoyment.
car audio amplifier. 
All 
Thank you for making SOUND STORM your choice for car audio equipment!
MODEL | S302 | S402 | S502 | S664 | 
RMS Watts / CH at 4 Ohms  | 60W x 2  | 85W x 2  | 110W x 2  | 85W x 4  | 
MAX Watts / CH at 2 Ohms  | 150W x 2  | 200W x 2  | 250W x 2  | 165W x 4  | 
Bridged Power at 4 Ohms  | 120W x 1  | 170W x 1  | 220W x 1  | 190W x 2  | 
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S/N Ratio  | 102dB  | ....................................................................  | ||
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Low Pass Crossover  | 35Hz - 155Hz  | ........................................................  | ||
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Frequency Response  | 9Hz - 50kHz   | ..........................................  | ||
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THD @ RMS Watts  | 0.01%  | .................................................................  | ||
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Channel Separation  | 90dB  | .................................................................  | ||
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Damping Factor  | 100+  | 100+  | 100+  | 125+  | 
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Fuse  | 15A  | 15A  | 20A  | 20A  | 
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Dimensions ( 9 1/2"W x 2 1/4"H x ... )  | 5 1/2"  | 7"  | 9"  | 11"  | 
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S702 | 
  | S1002 | S804 | S1004 | S1204 | 
150W x 2  | 
  | 210W x 2  | 150W x 4  | 125W x 4  | 175W x 4  | 
350W x 2  | 
  | 500W x 2  | 200W x 4  | 250W x 4  | 300W x 4  | 
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325W x 1  | 
  | 420W x 1  | 420W x 2  | 400W x 2  | 480W x 2  | 
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102dB  | 
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35Hz - 155Hz  | .................................................................................................................  | ||||
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9Hz - 50kHz   | 
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0.01%  | 
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90dB  | ...........................................................................................................................  | ||||
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125+  | 
  | 125+  | 125+  | 125+  | 125+  | 
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30A  | 
  | 20A x 2  | 20A x 2  | 25A x 2  | 30A x 2  | 
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12"  | 
  | 17 3/4"  | 13 3/4"  | 17 3/4  | 21 5/8"  | 
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