Fishman LOUDBOX ARTIST Operation & User’s Manual

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7. Anti-Feedback If you encounter low-frequency feedback, sweep this control to isolate and eliminate it. To learn more about acoustic feedback, see page 9. 8. Phase Use the Phase switch in conjunction with the Anti-Feedback fi lter to eliminate acoustic feedback. To read more about acoustic feedback, see page 9. 9. Effect A Level Controls the amount of Effect A in the input channel. 10. Effect B On When this button is lit, the input channel’s audio is processed by Effect B. 11. Effect A Use this control to select one of four effects for Effect A. 12. Effect A “Time� ...

Feedback usually occurs in the lowest octave of your instrument, generally with two notes about a half step apart. The lower type of feedback (cavity resonance) starts when the sound pressure coming out of the speakers excites the resonant air chamber inside your instrument. We have found that it is effective to tune out an instrument’s cavity resonance feedback with the Anti-Feedback (notch fi lter) in the Loudbox Artist. For acoustic guitar this occurs at G# on the low E-string, or at about 100Hz. Turn the Anti-Feedback knob to about 11 o’clock to dial out this ...

Lower the Master Volume before you turn on the amp. Flip the power switch to the up position. 2. AC power Operate the amplifi er only at the voltage indicated on the rear panel. For 120V amplifi ers purchased in the USA, Canada and Mexico, plug in the supplied detachable AC power cable. For 100V and 230V amplifi ers purchased outside the USA and Canada, you will need to supply your own detachable AC cable. This cable must have an IEC- style 320 connector at one end, and a male AC plug appropriate for your region at the other. Disconnect device is AC inlet or po ...