The FBQ100 automatic feedback destroyer is a compact device that eliminates feedback and provides other versatile features in an easy-to-use design. Ideal for PA applications, the unit has an intelligent learn mode that can automatically equalize your PA and protect your system from feedback. The search algorithm uses narrow FBQ filters that can destroy up to 8 feedback frequencies while maintaining sonic integrity. The FBQ100 also has an integrated mic preamplifier with 48V phantom power for use with condenser mics. The balanced XLR and 1/4" inputs can accept mic and line signals with full gain control. There are also balanced XLR and 1/4" outputs for wide system compatibility. A delay line offers up to 2.5 seconds of adjustable delay, while a noise gate offers automatic and manual parameter settings. There is an automatic compressor with variable density, as well as a subsonic filter with an adjustable cut-off frequency.