Purchased a bass recently with EMG active pickups. The bass sounded a little distorted. At first, I thought it may have been the battery. Changed the battery and then noticed that the system had 250k pots. Making a long story short, I changed the pots to the correct 25k pots and 18v system and the problem still exists. Granted it is not as bad, but still exists. Could the pickups have been damaged by having the wrong pots??