So recently bought my first bass and amp.Bass is a fender mim jazz bass v.Amp is ampeg ba-108.Started practicing and found no matter how i adjusted the bass or the amp there is really no low end just highs.So thought about changing pickups.So i sent an email were i bought the bass and was told to try a preamp in the bass.So i found that the preamp that he recomended was also in pedal form.So a little confused.So a preamp just boosts the pickup range?So if this is the way the preamp works would it not be best to leave my bass in stock condition and buy the pedal preamp?Or should just buy pickups?