To figure this out, you need to look at the power levels you “can” use to drive these speakers. The Epic drivers are rated at 200 W RMS each and the tweeter is good for 75 W

Conservatively, you can go with 400 W. At that level, the 14 G inductor will present a higher power handling and lower equivalent resistance – runs cooler. For the capacitor 250 V should be fine. In order to get even close to that voltage you’d have to be running over 10,000 W. You’ll be fine. The resistor should be fairly high power and be either wire wound or sandcast, 10-20 W. Reason these are lower powered is that there isn’t as much constant energy in the higher frequencies as in the lower (bass) frequencies.

Not much, just a slightly higher cutoff point that you most likely won’t notice at all when in place with the rest of the components. In fact, what I recommend doing is to download XSIM, the .frd and .zma files for the drivers, put the crossover schematic (as designed) into XSIM and save it. Then do a SaveAs (I like to add “real world” to the original name) and start shopping around for the closest value parts available and plug them in. That way you can see if there’s any major issue with parts values that you can actually get over the theoretical design numbers. That’s the process I used when I was helping Tonkers with his BTS 1.5 and the Focal mini.

Just follow the links and bye related components