Well, the stock size is a 2 1/2 speaker and its full-range stck. Well, I am useing a 400x4 amp and everything is adjusted correctly and I just vaporized the stock dash speakers. I need a recommendation for replacements that will handle this power safely. Any suggestions are welcome. I believe I mat need a bass filter so I can completely eliminate bass from the speaker so I can go to a tweeter instead of a full-range.