@rauliruegas I would like to emphasize your point on having a reference.
When tuning a HiFi system you have to have some idea of where you are going. You have to have a reference. You have to know what is possible with the very best systems, which is why listening to serious high end systems is so important even if you can not spend that kind of money. Never say you can't get that kind of sound out of a less expensive system. People would be surprised how close they can get with careful equipment choice, attention to detail and good room management.