Hey guys I bought this 100ix or x2 for $40 came complete with side covers but my friend who also bought it didn't test it or knew if it worked or not I bought it because it's old school Rockford and I didn't test it as well I opened it because I was curious to see the guts I broke the warranty seals and I found a burned gate resistor upon my admiration of the guts so this leads me to thinking this channel is non functional. Can I just replace all four fets and source resistors, gate resistors and it'll be okay? Also can I change the original buz11's for IRF3205? Will that make any difference in it lasting longer? Thanks again guys!