amplifier
audio
background
black
board
broadcast
broadcasting
button
buttons
channel
closeup
concert
console
control
desk
digital
dj
electronic
engineer
entertainment
equalizer
equipment
hand
industry
instrument
knob
level
media
mix
mixer
mixing
music
musical
panel
person
producer
production
professional
radio
record
recording
room
sound
soundboard
stereo
studio
switch
system
technology
volume