1. Guitar Volume Knob:
- The guitar volume knob is typically located on the body of the instrument, usually near the output jack.
- Rotating the volume knob clockwise increases the electrical signal strength from the guitar's pickups, resulting in a louder output.
- Turning the knob counterclockwise decreases the signal strength, making the guitar quieter.
- Adjusting the guitar volume knob controls the output level before the signal reaches the amplifier.
2. Amplifier Volume Control:
- The amplifier volume control is usually located on the front panel of the amplifier.
- Turning the amplifier volume knob clockwise increases the overall loudness of the amplified guitar signal.
- Rotating the knob counterclockwise decreases the volume, making the sound quieter.
- The amplifier volume control adjusts the final output level after the signal has been processed by the amp's preamp, tone controls, and power section.
By adjusting the guitar volume knob and the amplifier volume control together, guitarists can achieve precise control over the instrument's overall volume, allowing them to play at different loudness levels or to create dynamic swells and fades. Additionally, some guitarists use volume pedals placed between the guitar and the amplifier to control the volume level remotely while playing.