Adjusting the sonic fingerprint of a system.

I was wondering if a systems sound can be adjusted by turning the attenuators down on some components and up on others.

For example, I use Tidal on a streamer. Tidal has a volume control. My DAC has a volume control. Of course so too does my pre amp. Lastly, my amp has a volume control. Is it possible to give my pre amp more influence on my sound by turning down the volume on the streamer and the DAC and turning it up my pre amp?

Sometimes I feel I can hear the difference but other times not, so my mind is playing tricks on me. It does seem at times like slow music and jazz sounds better with the pre amp and amp turned high, and the DAC and streamer turned down. Rock, metal and fast music seem to sound better with the streamer and DAC turned up.

Do I need a psychiatrist or does the sonic profile alter when changing volume levels on components?

Thanks.