Output Connection; Operation; Speaker Protection - American Pro Audio LAB DSP Serie Manual Del Usuario

2.3.3.Bridge mode connection illustration
2.3.4.Interface illustration
XLR male plug typical
pin assignement

Output connection

3.OPERATION

WARNING: Before turning ON the unit, please make sure the unit is power OFF, the
power switch is in the ON/OFF position, and all the volume knob has been set to the
lowest position.

3.1.Speaker protection

Clipping not only make the sound worse, but also will damage the high frequency drive unit.
It is recommended you that don' t do the clipping to the unit' s signal to protect the speaker.
In addition, to avoid the speaker drive circuit burned which is caused by the strong infra sound
signal transmission of the unit, breathing or the high level which is caused by the dropping of
the microphone and the low frequency signals. It should take one of the following ways:
1. Install the high-pass filter between the mixer output and unit input.
2. Use the built-in DSP to set the high-pass filter (only for the unit with DSP).
3. Install a high-pass filter at the sides of the mixer. At the premise of without affecting the use,
set the filter frequency as high as possible. For example, for music is set to 35Hz, for the micro-
phone is set to 75Hz. In each mixer's input channel, set the frequency of the filter with the rele-
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