Gibson Ultrasonic Speaker [upd] 【BEST】

at 16 Ohms and marketed as "computer optimized" for modern performance. Sound Character and Legacy

Furthermore, many online listings for a "Gibson speaker" are actually referring to vintage from the 1960s (used in guitar cabinets). A paper woofer is not an ultrasonic transducer. You must carefully check the listing: If it has a dust cap and a magnet, it's a guitar speaker. If it looks like a flat array of ceramic discs or a polished metal grid, it might be the ultrasonic unit. gibson ultrasonic speaker

The genius (or horror) of the concept lay in its selectivity. Because the carrier wave was ultrasonic, a bystander standing two feet to the side of the beam would hear nothing. The target, however, would experience a pinpointed auditory assault. Gibson marketed the device for a variety of dystopian applications: dispersing unruly crowds, protecting prisons and military perimeters, and even repelling animal pests from airports. The speaker could project the human voice with terrifying clarity or blast a siren so painful that the only rational response was to flee. at 16 Ohms and marketed as "computer optimized"

The result was the Gibson Ultrasonic speaker series. You must carefully check the listing: If it