Pioneer Decks: they do justice with all there EQ features, good preout voltages, very clear pioneer speakers blow Polk/MOMO: amps are great clarity, dont overheat, crossovers die though.. speakers are great, very clear! subs suck, have too much excursion Alpine: Great decks lack of flashy displays, Great speakers, Great Amps, Decent subs, low SPL Eclipse: great decks, all i have used... panosonic: very flashy displays, bad quality sound / distortion JVC: lack of EQ options, very flashy displays, some distortion at loud levels. Kenwood:alrighty decks, good speakers good amps, ok subs Sony: decks burn out, amps burn out, speakers blow...(great home audio, horrible car audio) please do not put these in your starquest, BLITZ Lightning Audio Pyle Pyramid (you get what you pay for, if the speakers are 6000w for 10 dollars, they are gonna sound like crap)