I love my American Deluxe J. It has amazing feel and sounds incredible unplugged. However, plugged in, it sounds a bit "active" and hi-fi. I have the old 97 style with the Suhr single pole pickups. Any suggestions on pickups (or even a preamp) to replace them with? Is the preamp even the problem, or is it the pickups? Also, would converting it to 18 volts help the sound (giving a bit more headroom - maybe giving it a cleaner sound?)? Thanks. Oh, and the sound I'm going for is some low end growl... maybe a bit thicker than the usual J sound since I like soloing the neck pickup. Something a bit vintage sounding in that it's not overly hot sounding, but that has a good deep fundamental and a bit of edge.