I have an Alpine PDX-1.600 amp connected to a JL W6 in my car. The processor I had to install (Alpine PXE-H650) somehow got reset which feeds into that amp and another Alpine digital amp (speakers). The amp for the speakers still lights up and I can hear music but the subwoofer amp doesn't light up. Any ideas what could cause this?

SOURCE: Blown fuses

This is a sign the you have poor voltage regulation. Which may mean that you are taxing the electrical system of your vehicle. I would suggest you adding a secondary electrical supply for you audio system. This can be done by adding an extra alternator and voltage regulator and battery supply. This will allow you to drive your audio system without having it (power supply) split between the vehicle and the audio system. The fact is your system is drawing to much current for the unit and your vehicle. You are blowing the 20-amp fuses which means the the amp is creating a currnet draw which is past the rated value of the fuses, which if done too many times could damage the power amp components in the unit. I would also check the ohmage reating on the speakers connect to the unit since you may have the wrong impedance which may also cause excessive current draw and actuate some sort of overcurrent protection.

SOURCE: ALPINE PDX 1.1000

well you would have to look into the ohms of the amp compared to the ohms of the speaker. If the ohms are different you would have to hook them up in a different way. check the RMS on the speaker as well as the amp, this can also be sufficed by wiring it different if ohms match up properly! Hope this helps you out and if this is not the case let me know.

SOURCE: alpine pdx 1.600keeps cutting out

you need more batt, more amps, try new batt, capacitors are paperweights, spend on good batt.

SOURCE: alpine pdx 1.000 keeps cutting out

You are going to want to make sure all your power wires and grounds are 4 gauge as well as the wire leads to and from the capacitor-4 gauge also. make sure you have a very good ground - the power wire from the battery should hit a distribution block-from the dist. block a 4 gauge should go to the capacitor another 4 gauge to the mono amp and another to the 4 channel amp -every component should have a good solid ground even if you have to bust out a grinder and a drill and some self tapping sheet metal screws and go nuts on it- see if that helps you

SOURCE: Alpine PDX-1.1000 to a 10 "Alpine SWX-1043D

straight up. Since it has the power saving technology where it gives out the same power at 2 ohm and 4 ohm loads then u dont have to bridge it and since its a single speaker you dont have to bridge it and since it is a mono block oyu dont have to bridge it. just wire + to + and - to -.