1. Yamaha M7CL C B A D E F G H I Stereo IN Mix Channel Section Master Faders Cenralogic Pad Parametric EQ Scene Record and Recall Cenralogic Pad Channel Control Channel Select and On/Off

3. M7CL

5. Centralogic Pad Mix/Matrix Master EQ Touch Pad Encoders Channel Selectors

6. M7CL M7CL What Controls What?

7. Audio Terminology Pickup Pattern: the shape of the field surrounding the mic Cardioid is a very common pattern, also Omni and Super Cardioid

8. Audio Terminology On and Off Axis

9. Audio Terminology High Impedance/Low Impedance (HiZ/LoZ) XLR

10. Audio Terminology High Impedance/Low Impedance (HiZ/LoZ) Tip Ring Sleeve (TRS), Phone Plug, 1/4”

11. Audio Terminology Speakon

12. Audio Terminology Decibel: a measurement of sound pressure. 20dB is the threshold of hearing, 120dB is the threshold of pain Hearing loss is the most preventable injury in technical theatre

13. Audio Terminology Acoustics: The physical characteristics of any space in regard to its reaction to sound. Critical Distance: Where an amplified sound and unamplified sound are the same level. Mic placement should not exceed 1/2 critical distance. Floor: The ambient sound level of a space. Sound reinforcement must raise levels above the “floor” to be heard. Frequency: The scientific name for pitch. Frequencies are sustainable and measurable sound waves. Inverse Square Law: The sound level decreases by 6 dB every time a mics distance from a sound source is doubled. The opposite is true as well, every time the distance is halved, dB levels increase by 6dB Level: Referring to the loudness of a system

14. Audio Terminology Potential Acoustic Gain: ( PAG:) The maximum output of a sound system. SPL: Sound pressure level

15. Frequency (the scientific name for pitch) Frequencies are sustained and measurable Frequency is measured in Hertz More waves per second equal a higher frequency/pitch