Rane AC 22, Operating And Service Manual

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AC 23: 2-Channel 3-Way Configuration
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1. POWER SWITCH:
Two guesses.
2. POWER INDICATOR: When this yellow LED is lit, all output muting circuits are fully"on"
and the unit is ready to operate.
3.
CH. 1 MASTER LEVEL CONTROL:
This controls the overall level of Channel 1 without
altering the relative settings of the High/Mid/Low frequency outputs.
4. LOW FREQUENCY LEVEL CONTROL:
This controls the level of signal going to the Low
Frequency driver only in this channel.
5. LOW FREQUENCY MUTE SWITCH:
When pressed to the IN position, all signal is
removed from the Low Frequency output. This eases tune-up procedures as described in
Section 111-4.
6. LOW FREQUENCY TIME DELAY CONTROL: This control adds from Oto 2mS of time
delay to the Low Frequency output only. This allows a low frequency driver to be electronically
phase-aligned with a mid frequency driver whose diaphragm is situated BEHIND the low
frequency diaphragm. Refer to Section 111-3 for alignment procedure.
7.
LOW/MIO CROSSOVER FREQUENCY SELECTOR:
This 41-detent selector sets the
crossover frequency between the Low and Mid frequency drivers. Refer to Section 111-2.
8. MIO FREQUENCY LEVEL CONTROL:
This controls the level of signal going to the Mid
Frequency driver in this channel only.
9. MIO FREQUENCY MUTE SWITCH:
Removes all signal from the Mid Frequency output
when pressed to the IN position.
10. MIO FREQUENCY TIME DELAY CONTROL:
This control adds from Oto 2mS of time
delay to the Mid Frequency output only. Refer to Section 111-3 for alignment procedure.
11. MIO/HIGH CROSSOVER FREQUENCY SELECTOR:
This control sets the crossover
frequency between the mid and high frequency drivers in this channel. Refer to Section 111-2.
12. HIGH FREQUENCY LEVEL CONTROL: This controls the level of signal going to the High
Frequency driver only.
13. CH. 2 MASTER LEVEL CONTROL:
This controls the overall level of Channel 2 without
altering the relative settings of the High/Mid/Low outputs.
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