fixed resistors for L-pad...Power rating?

Lpad on the tweets...
Make a 4by4. This is in abstract. If you have high power speaker you would use a 4x10W, lets say, for a 40W equivalent (series&parallel). The tweeter does not use the full (500W) power. If you use a 20W resistor, buy 4 for a 80W result, and connect them series/parallel. And more wattage if you need more power. Usually power speakers have a lamp (incandescent). Look at Eminence bulbs for xovers and others, to protect your valuable HF compressor drivers.:D