What crossover frequency should I use between my subwoofer and my 6″ or 5″ midbass drivers?
There’s no quick and easy answer to this question, It all depends on the car and the overall design of the system. Generally speaking you don’t want your subwoofers to go much higher than 80-100Hz. Typically when you set your subwoofer crossover point you will use that as a starting point for your high-pass on your mid/bass drivers. Sometimes you will need to increase the crossover frequency and sometimes you will need to lower it. It is basically all a matter of personal preference and the acoustics of your car. Electronic crossovers make it very easy to try a variety of crossover frequencies to see what works best for you and your car.
