How to Increase the Gain in an Audio Tube Amplifier

The gain is used to adjust volume.

Increasing the gain on an audio tube amplifier is extremely simple; it requires a simple adjustment made to the "Gain" setting on the amplifier. Audio tubes are speaker boxes that are shaped like a cylinder and can be made exclusively for sub-woofers. They almost always have a built-in amplifier. The amplifier provides power to the speakers in the tube and can also control the volume EQ cutoff and other functions.

Instructions

1. Locate the control panel for the amplifier. This should be on the back or one end.

2. Locate the "Gain" control. There should be "+" and "-" symbols on either side of it. Turn the switch in the "+" direction to increase the gain or volume.

3. Play music through the amplifier and adjust the gain until the desired volume level is reached.

References

• Team Rocs: Amplifier Gain Controls