It is very much possible. I'm one such example. I have been always fascinated by physics, especially electricity and magnetism. This hobby of mine culminated in learning electronics. I would make speakers from Pan Parag tin container, transistor radio, radio transmitters, repair all electrical stuff that went bad in the house. All starting at age of 10 onwards. After making a transistor radio (I think at 14 years age), I started making amplifiers. I didn't care a damn about music. I started appreciating music only probably in my 30s and that too strictly limited to Pre 80 bollywood songs, rock bands like deep purple, scorpions, AC/DC, Rainbows. Fleetwood Mac, The Doors, Rolling Stone, etc. It is mostly like Hari says. I switch off lights. I don't tolerate any sound coming from the AMP other than Music. Listen late night when everyone is sleeping. I have my own room. No one is allowed to enter it when I'm listening. It is primarily love for how electrons flow from one end to another and finally making sound in the speaker. I love equipments, love DIY and primarily because the whole science behind this is fascinating. Music is just fodder.