Fostex AP2090 User Manual

CROSSOVER NETWORK, SELECTOR SWITCH

1)  FULL
     At this position, the crossover network is bypassed, (Hz)
     control pot becomes ineffective, a flat response output
     against the input signal is obtained at the output connec-
     tor. The crossover network outputs (HIGH, LOW) at each con-
     nector will be those set by the crossover frequency adjust-
     inig knobs.
2)  HIGH
     When this position is selected, the HIGH PASS signal whose
     cutoff frequency is set by the (Hz) knob, is obtained at the
     speaker output connector.
3)  LOW
     When set to this position, the LOW PASS signal whose cutoff
     frequency is set by the (Hz) knob, is obtained at the speak-
     er output connector.

INPUT CONNECTION
     Two types of connectors, XLR3-31 equivalent and 1/4" 3P
phone jack, both of balanced line are wired in parallel.
     Polarity of the pins are as follows:

     (#1 pin) • • • Ground, (#2 pin) • • •  Hot, (#3 pin) • • • Cold

     For the stereo mode, the rear panel MODE selector switch is
set to STEREO and the left input is connected to INPUT (1) and
the right input to INPUT (2).
     For the mono mode, the selector switch is set to MONO and
the input signal is applied between ground and INPUT (1).

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