英文關鍵字
acoustic
adjusting
amp
amplifier
amplify
animation
audio
audiophile
background
band
black
broadcasting
cabinet
closeup
component
concert
control
cord
disco
electric
electrical
entertainment
equipment
gain
gold
hobby
indicator
instrument
jack
knob
led
loud
music
musical
panel
plug
power
professional
retro
rock
sound
speaker
stage
tone
volume