Making active speakers with 4 Gallo A'Divas

Hi Manoterror,
Determining crossover points requires experience. Understanding speaker resonance, crossover slopes and curves as well as time alignment and phasing. If I were doing what you are doing and had minimal experience. I would duplicate the crossover points of the manufacturer and use at least as steep of crossover slopes as they did. This information should be published, if not, the info is not trade secrets and the manufacturer should tell you.
Example would be, if the manufacture used a 3k @ 12db per octave, then your active should stay at 3k and be 12 or possibly 24 db per octave. Probably 24.... Drivers have a natural rolloff on their own and a 12db per octave passive may actually roll @ 18 or 24 db per octave actual. An Electronic crossover will help control this as well as making alot of other variables better.
I am an old guy and haven't done any electronic crossing in 30 years, but I would look for a unit that had variable frequencies as well as slopes. If the slopes are fixed, I would look for 24db per octave or more. Good listening, Tim

Hi Manoterror,
If these are single full range drivers, Why would you need an electronic crossover? All my above comments were made assuming that you would not use any passive components. I would recommend however that you cross your mid driver as low as possible, keeping the crossover point out of the vocal region for best results. Unless of course your drivers require being crossed in that region.

Hi Manoterror,
It seems that you have answered all of your own questions. I was confused by your question when you asked about using an electronic crossover, but overall Herman is right on.
Your only benefit of the electronic crossover would be to select a good crossover and use one amp on a subwoofer and another on your spheres. Your hipass amp would be cleaner. If you decided to do that, I would recommend lower than 120hz as a crossover point, the Gallo A'Divas are capable of 76 hz. 120 hz in many rooms would be directional, if at all possible go to 100hz. Good Listening , Tim
Good Listening. Tim

You have no great advantage to use a crossover in this configuration. What ever problems one driver has the other will share, the idea would be that if you had a low region coloration to cross it out to a woofer below or if you had a dip or peak in the upper mids to high end to cross it over to a tweeter, but with two identical drivers, your results will be similar with or without biamping, other than the upper amp should be a little cleaner not playing any bass. Good Listening, Tim