英文關鍵字
loudspeaker
bass
studio
speaker
technology
equipment
music
volume
woofer
monitor
audio
acoustic
professional
sound
stereo
power
dynamic
subwoofer
record
membrane
driver
hifi
electronic
voice
closeup
play
black
loud
dance
wave
white
vibrate
signal
slow
level
pulsating
powerful
diffusor
rock
classic
background