in need of info on how to bridge a punch 500x 4channel amp to get 250x2 for subs.I cant seem to find any info on it and the pdf from fosgate is corrupted and wont open.Any help would be great thanks.
+ ch1 - + ch2 - + ch3 - + ch4 - Take + from ch1 and - from ch2 and connect them to one side of the box. Do- the same thing with + from ch3 and neg from ch4.