A power attenuator can be either purely resistive, or mostly resistive and partly reactive.

An early guitar amplifier to include a power attenuator was the Jim Kelley amplifier, which came with its own L-pad type attenuator.

They were also the first guitar amplifiers to be offered with an optional power attenuator.

The Princeton recording amplifier is basically a blackface Princeton with built-in overdrive, compressor and power attenuator.

A compact isolation cabinet contains a small guitar speaker such as 6 " diameter and sometimes an attached power attenuator to prevent blowing the speaker.

Pushing a guitar amp to such an extent can destroy components of an amplifier whether using an isolation cabinet, dummy load, power attenuator, or conventional guitar speaker cabinet.

Getting an authentic electric guitar amp sound including power-tube distortion requires a power attenuator (either power-soak or power-supply based) or an isolation box or booth.

The DI signal can be obtained from a DI jack on the guitar amp, or from the Line Out jack of a power attenuator.

When using a power attenuator with a tube amplifier, the master volume no longer acts as the master volume control.

Instead, the power attenuator's attenuation control controls the power delivered to the speaker, and the amplifier's master volume control determines the amount of power-tube distortion.