Historical note - The Quad of England preamps used to have an elaborate set of adjustable tone controls with one of the effects available being to select a shelf-like uniform decrease in the high frequency range: ------------------__________________
Although this was not a true equalizer,
it was very useful in the original heyday of the vinyl LP to help make the high frequency range in recordings uniformly less aggressive.
With the advent of CD "perfect sound forever" the use of such a circuit became virtually extinct in home high end stereo preamplifiers.
This would still represent a quick and useful temporary solution for many systems, although it could not be considered ideal. The modern preamp designers might be able to resuscitate this type of defeatable, shelf-like, tone control. The perception of high frequency brightness, or glare, is definitely a prominent topic of discussion on Audiogon.
During the sometimes lengthy process of trying to achieve ideal high frequency reproduction, why not allow the listener an option to "fake it 'til you make it"?
Although this was not a true equalizer,
it was very useful in the original heyday of the vinyl LP to help make the high frequency range in recordings uniformly less aggressive.
With the advent of CD "perfect sound forever" the use of such a circuit became virtually extinct in home high end stereo preamplifiers.
This would still represent a quick and useful temporary solution for many systems, although it could not be considered ideal. The modern preamp designers might be able to resuscitate this type of defeatable, shelf-like, tone control. The perception of high frequency brightness, or glare, is definitely a prominent topic of discussion on Audiogon.
During the sometimes lengthy process of trying to achieve ideal high frequency reproduction, why not allow the listener an option to "fake it 'til you make it"?