Audio Budget - What to get??

[Grant]

The crossover only filters the audio signal going into the speakers. It separates the low and high notes, to put it in its simplest form, and distributes it to the corresponding speakers. Either the main cone or the tweeters. Do not confuse crossovers with amps. Unless your bi amping your components, but that's a completely different ball game out of your budget.

Get a decent 4 Chanel amp, bridge 2 of the channels for the sub, and use the other two to drive the front speakers.

Then at a later date consider getting a mono block for the sub, and running all speakers amped. But for now, 4 channel! Lol