I have a Schecter Hellraiser Solo 6 FR which I've owned for about a year now.

Most recently I've been having a problem particularly on the clean channel on any amplifier. When I strike the strings there is a crackling noise (I'm guessing it's the noise clipping) that occurs right on the impact/just after. Besides that there is nothing else wrong except for when I strike the string firmly.

Could it be faulty wiring within the guitar?
If not, what else?

There is no noisy pots.
Tested it with different cables and different amps.