Acoustic energy projection system
Acoustic horn
Acoustic horn
Acoustic horn and attachment device
Acoustic unit base for electropneumatic horns
Acoustical transducer enclosure
Article of rolled form
Baseball bat having the functions of resonators and microphones
Cinema sound system for unperforated screens
Collapsible and portable megaphone
Constant directivity acoustic horn
Constant directivity loudspeaker horn
Defined coverage loudspeaker horn
Directional loudspeaker
Electroacoustic public address unit with acoustic horn or...
Enhanced spectrum acoustic energy projection system
Exhaust noise suppressing apparatus for hermetic compressor
Exponential horn for use in horn-type loudspeakers
Exponential horn speaker
Horn and sounder