Strange sounds coming from my speakers.

25 years ago I got my Caspian roksan system with ruark speakers .Iwould lie down with my eyes closed and listen to the music and hear sounds that I had not heard before ,I would get up thinking someone was at the door or there was a noise in the house.25 years on I still do it.Please let there be someone that has noticed things in the music that they have not noticed with a cheap music player.If you think I’ve lost it send a white van round. PS I did say that I purchased my system 18 yrs ago on my 1st post I was wrong sorry.