Hello guys, first - sorry for my bad English! I have got an Crown XTI 4002 amplifier and I absolutely love it, but there is a little problem. I am a PA noob and I have no idea of programming presets for my device because I do not understand all the settings. So I thought that you can may help me. I have got a speaker system of dB technologies. 2x dB Arena 12" Top ( =87&tx_amdbt_pi1[product]=106"]Click ) 2x dB Arena SW 15 Sub ( =87&tx_amdbt_pi1[product]=113"]Click ) The XTI is the only amp for the system (not biamped). Can anyone tell me which presets I should make or is there a preset for this system? Please help me, I want to fully enjoy this great amplifier!