Yep, you're in trouble now. The most significant upgrade that I made to my system was a really good power conditioner.
Once the noise floor drops and you start hearing the subtle things you've never heard before, it's addicting. You'll be amazed with what you'll start hearing, and realize that the artists you're listening to are even better and more creative than you ever imagined.
Have fun, and remember that the next step will probably be to power cords and then on to the interconnects and speaker cables. The shielding is critical in all of them to keep extra noise out of the signal so that you can hear what the artist actually created on the record or CD.
Once the noise floor drops and you start hearing the subtle things you've never heard before, it's addicting. You'll be amazed with what you'll start hearing, and realize that the artists you're listening to are even better and more creative than you ever imagined.
Have fun, and remember that the next step will probably be to power cords and then on to the interconnects and speaker cables. The shielding is critical in all of them to keep extra noise out of the signal so that you can hear what the artist actually created on the record or CD.