Abstract: A musician's amplifier that produces an overdriven amplifier sound at any desired listening level by including an output section complete with audio power devices and a high-wattage dummy load in the pre-amplifier section of the amplifier. The audio power devices are overdriven to taste, and the results are then fed into a power amplifier section of the amplifier using a master volume control to set the desired listening level. The amplifier can include an effects loop and a tone control circuit in the power amplifier section. With this arrangement, the musician is able to accurately produce both overdriven and undistorted amplifier tones at many different listening levels with a single amplifier.