INFRASONIC FILTER
Placing the switch to "ON" engages a 28Hz infrasonic filter limiting the amount of low frequency
information going to the woofer. Set this to your personal preference while listening to the system one
way, then the other.
NOTE:We recommend using the infrasonic filter when using vented enclosures with this amplifier.
MODE SWITCH
Used to set the amplifier between single ,for single amplifier use, and Master or Slave for when connecting
multiple bd amplifiers together.
The first amplifier in the series being set as Master and the subsequent amplifiers being set as Slave.This
allows one gain, crossover, infrasonic filter and bass boost setting for all slaved amplifiers.
The gain on the subsequent (Slave) amplifiers can be used for fine-tuning.
A maximum of 100 bd amplifiers can be connected together using this method.
ADJUSTING GAIN
To adjust the gain setting, turn the amplifier gains all the way down (counter-clockwise).Turn the source unit
volume up until distortion is audible and then turn it down a bit until the distortion is inaudible.This will be
about all the way up on most source units. Next, increase the amplifier gain setting until adequate volume is
achieved. Rockford Fosgate source units do not distort, so the volume can be used at maximum setting.
NOTE:Best signal to noise and dynamic range are realized with the gain at minimum. Most users find
adequate gain and volume is achieved at about halfway in the adjustment range.
CAUTION:Avoid setting the amplifier gain very high as noise and distortion will
increase significantly.
NOTE:For a more in depth setting procedure, contact Rockford Technical Support.
ADJUSTING CROSSOVER FREQUENCY
The crossover frequency can be adjusted between 32-250Hz.The crossover is set to LP (Low Pass)
operation only.
Turn the crossover adjustment knob all the way down.With the system playing, turn the crossover
adjustment knob up slowly until the desired crossover point is achieved.
