Rockford Fosgate AF/4HD Installation Manual page 15

CHOOSING CROSSOVER FREQUENCIES
NOTE: Depending on the desired response of a given system, crossover frequencies can be
varied accordingly.
Choosing the correct crossover frequency can be difficult. Consideration of the following items
will help you make your selection easier.
OPERATING RANGE OF SELECTED DRIVERS:
Manufacturers will usually provide information about the operating range of theirdrivers so that
you can choose a crossover frequency within that range to obtain maximum performance.
DESIRED POWER HANDLING OF DRIVERS:
Most autosound installations introduce a number of acoustical problems that can sometimes
be corrected with careful attention to your crossover frequencies. The use of l/3 octave RTA
can help you determine if a problem exists and at what frequency.
The following crossoverfrequencies work the best with Rockford Fosgate drivers, and provide
a good foundation for any autosound system.
W o o f e r 100 Hz Low-pass
M idbass 100 Hz High-pass-275 Hz Low-pass
Midrange 275 Hz High-pass-9 kHz Low-pass
T w e e t e r 9 kHz High-pass