it comes with its own crossover...aka bass blocker for each bullet tweeter. so you can send a full range single to it and have the bass blocker do most of the work.
btw LOW, i recieved mine yesterday, hooked them up on my HT and they scream omg. //content.invisioncic.com/y282845/emoticons/veryhappy.gif.fec4fed33b4a1279cf10bdd45a039dae.gif just sucks that my car is in the shop getting repaired from the wreck. //content.invisioncic.com/y282845/emoticons/crap.gif.7f4dd41e3e9b23fbd170a1ee6f65cecc.gif