car booster equalizer, car audio booster, power amplifier, lousdspeaker, car speaker, tweeter­, Radio, radio cassette, pesawat televisi, tape recorder, tape deck, amplifier, loudspeaker, pesawat pengeras suara, pita-pita cassette, headphone, earphone, mikrophone, megapon, equalizer, tape-tape mobil, tuner-tuner, alat penguat signal antena (booster), alat-alat pembagi suara, (crossover), Box loudspeaker, pesawat pemancar dan penerima suara, alat memprodusir suara mono dan stereo, car booster