Good reply Misskuma, but in my experience a phono stage is the most important - assuming a decent high-end turntable (oh, endless discussions/battles maybe to come..!) is in place.
I'm assuming Raul has a good turntable Misskuma.
The phono stage is king to hear what's going on with a cartridge, if you already have at least a pretty damn good turntable and arm.
Raul - I'm assuming you do?