yes it can.. i would prefer it more for just ur highs.. but it can be used for all.. and my buddy used it for a bit when i sold all my stuff... he needed a amp and his stuff sounded decent...
i have this jl 500/5 sitting around my house i used to have it hooked up to my highs.. with two dub 7's.. hooked to a jl 1000/1... sold it all and now have the amp left.. asking 300 obo for it.. here are some pics