8
Names of Things and What They Do

Control Panel

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5
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INPUT Jack
Connect your microphone or line-level device here
(p. 6).
* The AC-33 provides a balanced (XLR) connector that
is wired as follows. Check the wiring of your device
before you connect it.
* Phantom power
is not supplied.
1: GND2: HOT
3: COLD
[VOLUME] Knob
This knob adjusts the volume of the mic/line channel
(p. 6).
If you’re using a microphone, set this to the MIC
position.
[BASS] Knob
This adjusts the tonal character of the low-frequency
range (p. 6).
[TREBLE] Knob
This adjusts the tonal character of the high-
frequency range (p. 6).
[CHORUS] Switch
This switches the type of chorus that is applied (p. 7).

MIC/LINE CHANNEL

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[ANTI-FEEDBACK] Switch
You can prevent acoustic feedback by turning
this on (p. 11).
Settings will be made automatically when you
turn the switch on.
The settings will be reset when the AC-33’s power
is turned on again.
REC Indicator
This will light red during recording.
PLAY Indicator
This will light green during playback.
OVERDUB Indicator
This will light yellow during overdubbing.
[REC/PLAY/OVERDUB] Button
Press this button when you want to record, play, or
overdub.
[STOP/CLEAR] Button
Press this button to stop the looper or to erase the
recording.
LOOPER
This function allows you to record a phrase and play it back repeatedly (p. 10).
The recorded phrase will be lost when you turn o the power.
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[REVERB/AMBIENCE] Knob
This adjusts the amount of reverb or ambience
(p. 7).
[MASTER] Knob
This adjusts the overall volume (p. 5, p. 6).
This knob does not a ect LINE OUT.
PHONES Jack
You can connect headphones here (p. 6).
* I f headphones are connected, the AC-33’s
speakers will not produce sound.
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INPUT Jack
Connect your guitar here (p. 5).
[VOLUME] Knob
This adjusts the volume of the guitar channel (p. 5).
[BASS] Knob
This adjusts the tonal character of the low-frequency
range (p. 5).
[MIDDLE] Knob
This adjusts the tonal character of the mid-frequency
range (p. 5).
[TREBLE] Knob
This adjusts the tonal character of the high-
frequency range (p. 5).
[CHORUS] Switch
This switches the type of chorus that is applied (p. 7).

GUITAR CHANNEL

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POWER Indicator
This will light if the power is on.
* The POWER indicator will become dim when the
batteries run low. If the batteries become even
lower, the POWER indicator will blink.
Please replace the spent batteries with fresh
ones.
[POWER] Switch
This turns the power on/o (p. 5).
* D ue to a circuitry-protection feature, the AC-33 requires a few moments after it has been turned on before it
is ready for normal operation.
* I f you need to turn o the power completely, use this switch to turn o the AC-33’s power, then disconnect
the plug from the AC outlet. For details, refer to “Connecting the Power” (p. 4).
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