Hi All! Probably my question was discussed many times already. I want to improve sound of my bass. I have EMG HZ pickups on my bass and active tone controls, don't know much about it. I was thinking of chaning HZ's for another EMG pickups,I noticed that on many expencieve Spectors they use EMG 40DC, so maybe I can make my Spector sound better by this kind of change. I saw many different types of EMG's on their web-site and I'm not quite sure which I have to choose. Also I would to know if changing of active tone control will make a big difference? I was thinking of Aguilar preamp or one of EMG systems. Thanks! Just for information I play acid jazz , disco and funk music.