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I assume you mean the Pr-12RX passive? That seems wrong to me, too. Put an ohm meter across the terminals of the horn driver and the woofer seperatly to see which, if either, is blown. If they're OK, look for a bad solder joint on the crossover.
These speakers have a history of being blown if played too loud. Apparently the higher quality CX version are reliable. If the lows are what is crackling, the voice coils are probably cooked causing it to drag the pole pieces.
See if you can isolate the buzz to one woofer or tweeter. If a woofer, gently and evenly move the cone in and release to feel / listen for scraping. If you notice any scraping, the voice coil could be shot - a small bobbin of copper wire may have deformed andis now rubbing. Occasionally if a speaker is dropped, the magnet can shift, which will then rub the coil.
In any case, if there is coil rub that causes the buzz, you need to replace that driver.
If the buzz is electronic in nature, assuming these are the powered versions, a qualified service tech will have to diagnose and repair.
well if you hear a rattle sound its probably already blown...and the amp could be drawing too much power if the radio shuts off...make sure all your wiring is correct. also if your car is off and you turn it up it will most likely shut off cause the battery cant handle it. but as for the sub i think its blown. good luck
Yes. Most likely your factory speakers are blown as I've seen this many times. They are co-axials (2 ways) and the woofer part of the speaker is blown or the surround is rotted and only the tweeters are playing. I also believe that the front door speakers are low frequenct. Are they playing or buzzing?? Let me know and I can confirm this as the solution. You need new speakers.