An ex-colleague used to have some huge Japanese 'rack system' and it included a big fancy equaliser with 24 (I think) sliders on it.
He took this bit of kit very seriously. Every time he bought a new record he would spend ages playing and replaying it tweaking the equaliser settings until he had found the best ones.
Then he got out the cardboard and stanley knife and cut 'templates' from the card. He printed and photocopied paper templates with columns spaced to correspond exactly with the spacing of the slides and had marked the + and - db range as a scale. He would paste the paper template onto the card and cut out a customised template to match every slider setting for each and every album in his collection and kept each one in the LP sleeve cover labelled.
Whenever he played an album he would then simply zero'ise all the sliders on the equaliser and then 'shunt' them into the correct position with the corresponding card template. He would spend hours with each new album preparing it's own custom template.
I should not mock. He was convinced of the benefit of what he was doing and thoroughly enjoyed the whole process and was meticulous in his efforts to get the best sound.
At that time I was using a QED A240 SA amplifier that did not even posess tone controls so I could not share enthusiasm for such a rigmarole but I admired the sheer effort and involvement.
There was a ten year age difference so I guess I started out in hifi at the beginning of the 'flat earth' era and he came from the mega-Japanese rack system era. (I seem to remember he had some huge Jamo speakers.)
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