
Figure 123: Sine Wave
The sine wave is a test signal that is commonly used to test audio equipment. In reality it sounds like a flute. It is like a input signal such as a guitar, bass, drum, synthesizer, or vocal.

Figure 124: The red lines represent the audio range the amplifier can handle without distortion.

Figure 125: The signal between the red lines is the guitar sound of overdrive or in extreme cases distortion.
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| Figure 126: Overdrive | Figure 127: Distortion |
Turn up the volume after these effects. It will be low, especially on the distortion.

Figure 128a: Distortion Effect with volume turned up.

Figure 128b: Input wave and output wave together.
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Different Types of Overdrive or Distortion.

Figure 129: Tube Distortion, done with the ADA Midi Tube PreAmp.
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Figure 130: Solid State Distortion, done with the Boss DS-1 Distortion Pedal.
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Figure 131: Tube Overdrive, done with the ADA Midi Tube PreAmp.

Figure 132: PreSonus – Ampire Amp Simulator is used on all examples. The ‘Amp1’ preset sounds the best in my opinion.

Figure 133: The PreSonus Limiter is used on all of the examples.