Towers of highs/mids & a woofer tower.

[cloud77 28]

I'm looking to build clean boxes of mids/highs and a woofer in a waist high tower.  I was going to throw matching pairs of infinity 6.5s, 5.25s, and 10" unknowns in 2 towers and an RE XXX v3 in a woofer tower. 

 

Before I start building, what do I need as far as crossovers go to connect my mids highs to a 4/8 ohm load.  looking to run a 400 watt receiver and a separate amp for the woofer.  ANy good equip I can look for?  Any recommendations for build or getting started?  type of wood that looks really clean?

[Shogen 325]

building your own crossovers yields best results... but PE has lots pre-built with great quality/pricing

[///M5 2,833]

You are putting ALL of those drivers in a tower?  If so that is a recipe for disaster.  

 

Anything more than a 2 way will be EXTREMELY hard for you to build a crossover for.  Far from trivial.  And, no, you can't just buy a crossover and even have mediocre results.

[95Honda 486]

Check out some proven designs and build them, you will be much happier and learn.  There are tons of big tower type designs out there.  I am building a set of Adire Hurricane knock-offs with some different 18" woofers, super loud and will sound good.  By copying 90% of Adire's design and just tailoring one part of the crossover for my different 18's I saved myself a bunch of design/eval time.  But even with a mod this small, I still have to test and measure to make sure everything is OK.

 

Designing a proper passive crossover is the hardest part of loudspeaker design.  A simple 2-way takes a lot of work to get right.  Like M5 said, the pre-made universal ones suck.  They keep you from blowing drivers, that is about it...