inputs.text: excellent - detailed clean efficient speakers not fully competed systehem yet eclipse nav head unit arc audio 1254 running 75 watts rms thehem play fine full range thehem crossed 80 hz 2 jl 10s backed buy 5001 arc audio amp subwoffers sound great dynamic efficient natural sounding like thehem better 600 focals car play clean threw entire range right amp ran power crossed played subs no problehem keeping happy speakers go 900 range find better performance