Behringer Firebird GX108 - Manual (Page 4)

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1. INTRODUCTION
1.2 Control elements
1.2.1 Front panel
Fig. 1.1: Front panel control elements
1 INPUT is the GX108’s 1/4" jack input for your guitar. Use a commercial
1/4" jack mono cable with good mechanical and electrical shielding.
2 The GAIN control governs the degree of distortion produced by your GX108.
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As high gain settings result in an output signal with plenty of treble
frequencies, it might be necessary to adapt the high-frequency range
with the TREBLE control.
3 The LEVEL control determines the overall volume of the GX108.
4 The BASS control in the EQ section allows you to boost or cut the bass
frequencies.
5 With the MID control you can boost/cut the midrange frequencies.
6 The TREBLE control adjusts the upper frequency range.
7 Use the ON/OFF button to switch your GX108 on or off: the LED located
between the MID and TREBLE controls lights up when the unit is switched
on.
1.2.2 Rear panel
Fig. 1.2: Rear panel connectors