I'm in need of major amp help...?

I have two 8" rockford fosgate punch subs in separate enclosures, truck boxes, with built in tweeters. I had a us acoustics usx 2100 amp which finally died after 10 years. Now I can't get that same amp but I want one like it or as close as I can get to it. I am SO freakin lost on this channel this and ohms and rms that, bridged, mono a/b class, What the #$%#? I'm just a mechanic... Can somebody just please tell me what good brand amp is close to what I had. I am partial to rockford fosgate stuff. Thanks for any help you can give.