performance of any sound reinforcement system is limited by
physical and acoustical factors. Acoustical feedback occurs
when the 'loop gain' of certain frequencies of amplified sound
exceeds one. This is when sound from the loudspeakers arriving
at the microphone is louder than the source arriving at the
microphone. The sound of the loudspeakers is picked up by
the microphone and amplified again. This cycle continues until
the system's maximum output level has been reached.
incorporates an innovative piece of software that uses a patented
combination of echo cancellation and frequency shift technology.
With Profecta you get the best from your sound reinforcement
system, and your audience gets to hear the message the way
that it's supposed to be heard.