Audio amplifier with switchable active components
OwnerChristian Jenningsinventor
Life of this patent
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Abstract
An audio device for amplifying an audio signal enables a user to instantly switch between two or more active amplifying components, thereby allowing the user to evaluate the effect of a particular active amplifying component in the audio device. In one example, the audio device is an audio vacuum tube preamplifier, and has a circuit configuration that facilitates A/B comparison between two or more preamp tubes by hot switching between preamp tubes in the audio signal path. The input to the two or more tubes is switched between each tube by the listener on demand without pause or interruption to the music or program.
Claims12
An audio device for amplifying an audio signal comprising:
- an input and an output having an audio signal path therebetween;
- a circuit connected between the input and the output, the circuit in part defining the audio signal path and including a power supply;
- the circuit further including:
- a first active component connected to the power supply for maintaining the first active component in a powered state, the first active component adapted to be selectively switched into the audio signal path to amplify the audio signal;
- a second active component connected to the power supply for maintaining the second active component in a powered state, the second active component adapted to be selectively switched into the audio signal path to amplify the audio signal;
- a switch for switching one powered active component into the audio signal path while the other active component is not switched into the audio signal path but remain in a powered state, thereby allowing a user of the audio device to readily switch between the first and second active components.
Dependencies are inferred from the claim text.