Attenuator for Line Level components not Preamp
 

In my opinion a important aspect of audio reproduction is being missed, by not recognizing attenuation as being different to (pre) amplification. The preamplifier introduced as early as 1955 served a purpose , when there were no line level standards.

https://en.wikipedia.org/wiki/Line_level

The attenuator differs by making as little change as possible to the audio quality of line level components - to do so resistance is the electrical property which preserves audio when done in a manner which allows the source component not to have any adverse loading, whilst concurrently acting to attenuate as required, for pleasant audio use. .

The phono preamplifier of course remains needed to amplify RIAA phono cartridge outputs

Looking forward to your comment.