Fernando!
Regarding -compulsive-: how can I say, it's something that has the power to force you in changing continuosly...maybe also against your own will!
You know, this hobby has an hidden side: you are listening to a particular system and deep inside you feel or imagine how that sound would result, changing this or that...and then you do that!
E. G.: my changes are often compulsive!!!!
Good listenings!