That amp seems to support 2ohm and 4 ohm loads. You cannot get down to 2ohms with 2 8ohm loads (subs).
So, you need to wire them in parallel so that the load is divided among the resistance of their voice coils (2 8ohm paths means the driving circuitry (amp) experiences 4ohms of resistance because ... physics, basically). Wire the + and - terminals of the subs together and attach them at the amps + and - speaker output terminals.
DO NOT run them in series. 2 8ohm loads in a row means the amp sees the loads added together, 16ohm. And its not rated for that, you could blow the amp by making try to drive a load that is too 'heavy' for it.
the turn the amp gain all the way down, turn the head unit up until you hear the normal sprakers start to distort (that f@rty worbbly muddy sound), then turn the volume back until it goes away and the full fidelity (faithfulness to the input signal) returns. Then turn the amp gain up until the subs distort, and back a touch until they stop. Turn the system back down at the head unit. Your system is now balanced to the maximum volume it can reproduce, adjust to taste from there. And remember to thump responsibly.
Also could be that the power wire and earth wires going to amp are to thin amp could be heating up and could be going into protection mode. Will switch on after it cools down what gauge wiring are you using?
You could measure the voltage into the 20gauge and the voltage out while the system is under load and see how much the voltage drops.
Ideally there should be little difference.
Or -
Replace the 20-22 temporarily using 16 and see.
The question is not very clear, but I assume that you blow the main fuse when you connect the amplifier to the battery.
First make sure that you have the correct fuse rating (amperage) installed. Then try connecting the power to the amp with the speakers disconnected. If the fuse still blows, you have shorted output transistors in the amp. This could be expensive to repair. If the fuse does not blow, your speakers could be short circuit as well. It is very possible that both the amp and the speakers are shorted.
So it will take 2 ohm speaker loads, therefore you can parallel 2 speakers together, that is to say connect 2 speakers to the + and - terminals of the left channel and 2 to the right.
4 ohms paralleled with 4 ohms = 2 ohms
So you are OK
RCA cables are the best way to get the audio from your head unit to the amp. If your head unit doesn't have RCA outputs, you might be able to use the speaker outputs of the head unit to connect to the "high power" or "high level" inputs of the amp, if the amp has such inputs (check your manual).
Disconnect all speaker connections and rca cables. Leave power, ground and remote wires intact. Try turning on again. If you still have a protection light your amp is faulty. Hopefully you have warranty. Double check all connections .A thumbs up would be greatly appreciated if this answer is helpful to you.
are you sure there is a power plug needed for the amp? very few amps require power plugs. you merely have to run wires to the power terminal. the power terminal should be labeled - pwr (b+), grnd, and rem.
Take the peak to peak power rating and multiply it by .727
that should be the RMS watts.
You don't have to worry too much about new stuff, but if you are using an older stereo amplifier that is rated for 8 ohm speakers then you should not use 4 ohm or they will pop the finals in the amp.
You could use 2X 4 ohm speakers in series on every channel and it should be ok.
No question posted i assume you have an issue? If not wanting to know about them? They are solid amps. Made under rockford fosgate. Please post more info.
it sounds like one channel in your amp had shorted and letting dc go to the speaker...a speaker is an electromagnet and requires ac to make it pulse..the amp has a blown channel and would have to be repaired and a factory service center...there is no quick fix..
Make sure the remote turn on cable is connected correctly and fuses on the amp are not loose. But first off jump power from the power terminal to the remote terminal to see if it even turns on. if it does not then the problem is something blown inside the amp. Is there a fuse under the hood? if so make sure it is not blown.