LO1

• Play back equipment at studio facilities ,
•  multi track and stereo ,
•  mixers ,
•  microphones (microphone essay) ,
•  monitoring systems , 
• speakers and monitoring enviroment ,
•  amplifiers ,
•  recording and playback chain ,
•  connections and game structures ,
•  safety and motioning levels 

Sound adjustments 

• reverberation
• effects and processors  
• compression
• limiting
• compression and limiting
• equalization 
• cable and connectors
• universal serial bus
• firewire
• musical interments digital interface (MIDI)
• cables
• ethernet 
• health and safety electrical risks , 
• safe handling and storage
• noise levels 

equalization on a mixer is normally split into three bands.
You have got high frequency , min frequency and low frequency.
The mid part is split into two parts.
Aux pre sends are used for monitor and headphone mizers they are independent of the channel fader aux post sends  are used for effects inputs