thks 4 responding,I m pretty sure that my setup are stereo.I use stereo channel input on the mixer(2 cables,L & R),and output to BBE(also 2 cables)then to the stereo amp(again,2 cables)finally to a pair of speakers,did I miss out anything?I don't have an equalizer but I saw many gig setup using an extra EQ,do I need that?is that going to help in sounding better?I hope to get things sound as good as what I hear from headphone.