But remember that some other stage conditions can also cause signal feedback - please also check the guitar and speaker (or monitor) position, and guitar mic(s). And make sure to set everything correctly to lower the chance of causing signal feedback.
And usually a guitar pick or your fingernail causes some high-frequency noise. You can use the Notch Filter to get a much better clean sound.
There are Gain and 3-band EQ controls on the pedal. Depending on the amplifier/speaker characteristic, playing style and acoustic guitar's body type, you can tune your sound the way you like by using the Gain knob, Bass, Middle and Treble control.
You can optimize the preamp input according to your guitar pickup type by selecting Piezo or Magnetic for better signal processing. It has a built-in FX Loop that allows you to insert external effect units to the Stageman Floor by using a TRS cable. It also works great for various acoustic instruments like the violin, mandolin, banjo and many more.
Record, Jam, Create!
Push both the Chorus and Preamp footswitches to turn the Stageman Floor into a looper pedal with 60 seconds recording capacity and unlimited overdubs. It's ready to jam at anytime, anywhere!
In Looper mode:
Preamp Footswitch controls the looper functions; Record/Play/Stop and Overdub
Reverb Knob controls the Loop volume level.
Stageman Floor has all useful input/output connections.