GAS MAD A1, Руководство пользователя

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19
HOW TO
Use an oscilloscope for high precision result
When you are setting the level/gain on your amplifier with an oscilloscope you are
measuring the output power of the amplifier.
WARNING! Make sure that the positive
speaker cable is removed from the amplifier.
Set the level/gain to minimum. Start a CD/digital sine-wave test track with your head unit’s
volume level at 75% and set the oscilloscope to AC Volts.
Connect the test probes on the amplifier’s speaker terminals. When you’re connected, you
will see soundwaves on the oscilloscope. The soundwaves should be moving in a steady
pattern with smooth tops and bottoms.
While observing the oscilloscope, start to slowly increase the level/gain until you start to
see irregulations in the soundwaves. When the waveform is starting to look squared, turn
down the level/gain until the waveform is back to smooth curves (see the graphics below).
GOOD WAVEFORM BAD WAVEFORM
Remember – if you use your BASS EQ or any other sort of amplitude enhancement functions
after setting the level/gain, you will have to do it all over again!