Did you put a speaker baffle on the door speakers?
If not try to enclose the woofer.
To me it sounds like distortion, what kind of files are you playing? off a CD? Radio? or Mp3? If Mp3 make sure your playing at least 328bps.
I would put a CD in .. one that is professionally made. (you bought in a store)
Keep all the settings on the radio at normal.
Do not use the Loud setting on the radio.
Listen to the CD. do you still have the poping?
If so you could have a blown speaker. you could have the speaker hitting a wire in the door. you could be out of phase, but I doubt it.
If you want to check to make sure the speakers are both in fase. Easy way to do this. take the door panel off, goto the amp, unplug the speaker wire coming out of the amp that goes into the speaker. take a 9v battery, touch the positive lead to the positive on the battery, touch the - to the negative of the battery, if the speaker pushes outward, it is hooked up correctly. If it does not push outward then its backwards somewhere. Do the same for the other side speaker, then make sure you hook back up the speakers (now knowing the correct polarity) to the amp with the correct wires going to the positive/neg.
If that all is working, check your settings on the amp, make sure High Pass Filter/HPF is turned off if it is a switch. If your HPF is a dial turn it to 80 or 120 depending on what you like. If it has both a on/off switch and a dial, turn it on and set it between 80/120.
Also check your settings on the radio, it could be a HPF built into your radio.
If you check all this, still sounding weird, you have a blown speaker/amp, or your trying to get more out of those little guys then what they can do. If so, add the sub.
|