dB Technologies DigiPro OPERA D Series Manuel de l'utilisateur - Page 5
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COMMANDS AND FUNCTIONS
AMPLIFIER PANEL
1)
2)
3)
4)
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6)
7)
8)
9)
10)
SPEAKER FRONT
1)
19
"Balenced Input" - "Link" - "Input Link" CONNECTORS
These balanced inputs can be used to connect balanced or unbalanced
microphones or audio sources at line level (0dB) (eg. preamplifier, mixer, recorder,
CD player, musical instrument, ...).
The balanced connector is connected in parallel and can be used to send the audio
signal to other amplified speakers, recorders or supplementary amplifiers.
"Limiter" INDICATOR LIGHT
This indicator shows red to indicate that the internal limiter circuit has tripped.
This prevents amplifier distortion and protects the speakers against overloads.
"Signal" INDICATOR LIGHT
This indicator shows green to indicate the presence of the audio signal (at a level of -
20dB).
"Ready" INDICATOR LIGHT
This indicator shows green to indicate that the main power voltage is correct.
The LED shows green normal operating conditions
"Sensitivity" INPUT SENSITIVITY CONTROL
This control adjusts the sensitivity of the signal amplifier input.
This control does not affect the "Link" - "Input - Link" output level
MODE SWITCH
This two-way switch allows to choose between two different system presets.
The "Flat" position allows linear response of the speaker, which is mainly suitable for
the "live" application.
The "Processed" position emphasizes the low frequency and regulates the mid
frequency. It is suitable for music play back
"Input Sens" SWITCH
Position the switch in LINE to use a line level source (0 dB) or MIC to use a
microphone.
POWER CABLE SOCKET "MAINS"
Used for connecting the power cable supplied.
FUSE CARRIER "FUSE"
Mains fuse housing.
POWER SWITCH "POWER"
This switch can be used to switch the diffuser on and off.
INDICATOR LIGHT
The blue indicator light indicates speaker status