Problem of feedback, this is the device for you. The processor is FBX901 numrique that "key" automatically filters on 9 frquences who "hang." This device allows to increase the level level of ten dB relative to threshold initial feedback.

UTILIZATION

The use is very simple, the processor is inserted between the source and the amplifier.
The microphones or installs) increases the volume slowly, hooking up (feedback), the first filter is set up automatically, the feedback disappears, it further increases the volume until the 2nd filter (feedback disappearance) and the troisime, .....

SOUND QUALITY

The band frequency drives not affect the cuts are not expected frequency drives, superb camera, one complaint, it is only mono.
Pdf + instruction sheet http://francismerck.free.fr/sabine.htm

OVERALL OPINION

Trs good hardware