A really useful bit of kit------for miking up quiet sources.
OK not often used in Rock & Roll... But for difficult mic jobs, people who whisper to a microphone- or people stay too far away or the mic is too near the speaker-.-.-.- and feedback is inevitable if you try to turn up to a good level.----- Then having this in the signal path can get you some more Dbs. The benefit varies with the different setup of each venue. Maybe about 6 Db more gain before feedback. And best of all the tendency to jump into sustained howling is reduced. You get warning colouration before full on howling while working at a louder level than otherwise possible. Also has an excellent auto mixer, really a switch between two mic inputs silently switching to the loudest. So fabulous for two mics on a lecturn without phasing but still the freedom to wave the head about. BUT if you have time do ring out the worst frequencies with a 31 band first for best possible Gain Before Feedback