For my DIY satellite speakers, I don't have the technical know-how to build my own crossovers, so I'll be buying pre-made ones from Parts Express. Since using a stock crossover means I can't add little resistors or whatnot to customize the output of the drivers, I've become concerned that the tweeter may become overbearing. Should I attempt to find woofers and tweeters with the same sensitivity levels to achieve a more uniform response level? Also, do wattage rating differences matter as well (like if the woofer is 40W, but the tweeter is 80W, etc)? Thanks for any input.