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Power Acoustik PTID-8960 Car Video Player - Page 2 Questions & Answers
What is this ? On the back of Power Acoustik 500w subwoofer
Sub-woofers work on a low hertz as per audio. You have a built-in amp that has a crossover that separates frequencies under 100 Hz. Typical Hertz range is between 20-60. Since you have a built-in amp the black rectangle is a heat sink which helps to dissipate heat away from the internal components and also seconds as a cover to keep debris and other foreign objects from getting to the amp and burning it out.
Hope this helps.
What type of fuse should I use I have a 1000watt power acoustik
Ohm's Law says watts / volts = amps, so 1000/12 is 83+change -- damn! I hope you have a big, phat alternator! So fuses have to be rated somewhat higher than device load, you need a 90 amp or 100 amp fuse -- what style I couldn't even begin to guess, normal automotive fuses don't go that high.
If this is a new install, make sure your power wires are heavy enough to handle the load. A fuse's job is to blow before the wiring catches fire. The longer the wire is, the thicker it must be. Electrical fire is a catastrophe so make sure your wiring is adequate -- I know it's hard to believe but the power wire is actually more important than the speaker wire!
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