Accusound AMA-1 Buku Pegangan - Halaman 7

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Amplifier use

cont

position of the "0/-20dB" button.

If the output CLIP indicator illuminates RED, then the volume control knob

should be turned counter-clockwise. Again this indicator gives the user plenty of

warning that the level is approaching overload, if distortion is not heard then no

action is required but be aware that if the level increases yet further then

distortion may occur.

All clip indicators will remain unlit if a low signal is present and will illuminate

GREEN when a good working signal level is present. They will turn RED when

the signal is approaching clip level.

0/-20dB button:

This button changes the sensitivity of the input. When the button is out the

channel is in its lower sensitivity and will be quieter but will take a higher input

level, as may be expected if a CD player or similar is connected. When the

button is pressed in, the sensitivity is increased and will become louder, this is

suitable for microphones and other lower level signals.

Phantom Power button:

When pressed, this button applies 12v phantom power to the respective input,

the orange indicator is also illuminated. The two channels may have phantom

power applied independently. Phantom power is only applied to the XLR

connector, when a jack plug is connected and phantom power is on then no

power is applied to the input.

Phones socket:

This will accept standard stereo headphones, the amplifier is mono so left and

right will have the same signal.

Phones Level knob:

This will adjust the level going to headphones when connected. This control is

independent of the main volume control so the main speaker may be turned to

off and the phones may still have full volume.

Effects Send socket (FX Send):

This socket will allow connection of external effect units or pedals. This takes

the signal before the main volume control but after all other controls.

Effects Return socket (FX Rtn):

This return socket takes the signal back from the external effects unit or pedal.

DI Out socket:

This socket allows the output signal to go to an external amplification system.

The signal is taken from after all controls but before the main volume control.

172 Wadsley Lane, Sheffield, UK. S6 4EE +44 (0)114 220 3517