
Figure 1: VA-4  Dual Channel Balanced Stereo Audio Amplifier Front Panel
#Feature
Function
1  | POWER Switch | Illuminated switch supplying power to the unit  | 
2  | - Button  | Press to decrease the level  | 
3  | + Button  | Press to increase the level  | 
4  | LEVEL   | Shows the gain of the selected channel (in decibels)  | 
5  | SELECT Button | Selects the stereo channel (1 or 2) being controlled using the + button and the - button  | 
6  | Channel 1 LED  | Illuminates when channel 1 is chosen via the SELECT button  | 
7  | Channel 2 LED  | Illuminates when channel 2 is chosen via the SELECT button  | 
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