Rockford Fosgate 250.1 Operation & Installation page 9

10. Input Sensitivity Controls – The input level controls are preset to match the output of most source units.
They can be adjusted to match output levels from a variety of source units.
11. Internal Crossovers – These built-in crossover cards are configurable for a multitude of operating
frequencies. The orientation of the card in its socket determines its function of high-pass, low-pass or full
range operation.
12. E-Z Bridge Switch / 0 -180 Phase Switch – This dual purpose switch enables you to E-Z bridge the
amplifier or invert the signal phase of the right channel.
13. Phase Switch – This switch enables you to easily invert the phase of the left channel without having to
disconnect the speaker wires.
14. Crossover Switching – These internal switches allow the crossover to be distributed to the amplifier and
Pass-Thru in many different configurations.
15. Audiophile Bypass – One of the crossover switching configurations allows the internal crossover circuit
to be bypassed, maintaining Audiophile sound quality due to a shorter signal path.
16. LED Power Indicator – The LED gives a visual indication of the status of the amplifier, lighting when the
unit is turned on.
17. Punch Status Display – The RJ11 interface allows connection of an LED display used to monitor amplifier
performance.
– 6 –