Tri-amping with active crossovers

[Andetroy]

I have done a lot of reading on audio Power Amplifiers. I'm very content with my progress as far as building power amps in concerned. My question however relates to active crossovers. I have been told that if I want to use active crossovers, the only option for a 3-way system would be bi/tri-amping. This would mean I'd have to design two/three different amps for HF and LF drivers. Is there a way I can avoid this as the cost would just go through the roof? Should I opt for a passive network. I'm new around here.

 

[BobK]

You would not have to design any amps. There are plenty of them out there for less money than you could build one for. Check Ebay.

Bob

 

[solo2racr]

Active crossovers have to be used with separate amps for each freq separation. Any crossovers placed in the preamp stage and then it all run into a single amp defeats the purpose.

 

[Andetroy]

Thank you for clearing that up. I have already simulated a design for the bass driver 70W. For the driver stated above, what in your opinion would be an acceptable midrange and tweeter power output?

 

[solo2racr]

What are your expected crossover points? That and driver efficiency will determine what power you will need.