Need Help in Setting Up PA System

[turk 182]

wow that's a lot of over lap in frequency bands. normally one chooses a crossover point and slope to eliminate two drivers from reproducing the same frequencies. (the acoustic sum of the output of two speakers depending on distance between them can have peaks and dips (comb filtering/phase cancellations))
as a starting point i'd use a 100 hz which would give you 30 or 35hz to 100 for sub and 100 to 20khz for the mid top at this point i'd be less concerned with gain structure as i would the result of these initial settings take some time to listen at low level to the different crossover slopes to become familiar with them.

 

[conanski]

My sub have a 35Hz-1.5kHz while high's at 40Hz-20kHz. Please advise what setting should I do in driverack for both.

Nobody runs subs up into the khz range so forget that spec, and you never want the subs and mains carrying the same freq range so use my suggestions above.

2- As i understand it, the gains can actually be set to max at 20dB before I optimize the gains from mixer control to both amps (drivers for high's and sub). I ran a PN in the mixer by setting mixer level control to 0dB which is just below clipping point when mixer gain knob is at max, without EQ.

OK here is one point you need to understand very clearly, control knob positions are irrelevant the only thing you are concerned about when setting gains is signal levels on the meters. And IMO you don't use signal clipping as the reference use 0dB on the meters.

3- Since my lowest sub freq is at 35Hz, do you really want me to set it at 30Hz?

Yes, filters don't have a sharp cutoff at a precise frequency there is a curve before they get to the advertised slope, so you have to set it a little wide of the target to get the desired results.. otherwise they start cutting into the frequencies you want to hear.

4- Do you mean I need to set my lowest freq for high's between 80-90Hz even though its lowest is at 40Hz?

Yes... and again forget how low the manufacturer says these speakers can go, you want the sub to handle all "sub" frequencies which is everything below 80-90hz in pro audio.

 

[reysantillan]

Thanks. To recap, I will set my sub freq at 30-100 Hz and my highs at 100Hz-20kHz.

 

[turk 182]

yes that would be a good starting point.
and in recapping you began this thread hoping someone would just post a list of parameters for your system set up: which didn't happen because most systems have individual requirements that need treatment before your system can be considered optimal.
how are things sounding now?