The FD23 feedback (ringing) detector is a
self-sustaining and erroneous oscillation that occurs when sound
arriving at a microphone is greater than the sound produced by
the person or instrument using that microphone. Feedback is
controlled through the use of a graphic or parametric equalizer,
and these units are most effective when the sound engineer can
quickly recognize the frequency at which feedback is occurring.
The FD23 provides a quick inexpensive means of detecting which
frequency is causing the feedback.
When used with any equalizer, it is the fastest way to
Uses the same filters as found in expensive 1/3 octave
A rugged hand held instrument with built-in microphone,
powered by AA batteries or a 12Vdc supply.