Electro-Voice Fx 70 Owner's Manual page 42

5.5. Distortion (THD)
5.5.1 Distortion (THD) - original signal
- Input level selector into position HI. effect OFF.
- Input level +10dBm.
- Input and output controls fully right.
5.5.2 Distortion (THD) - effect signal
- Input level selector into position HI, effect ON.
- Input level -10dBm.
- Service preset 01 recalled.
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