Hey like a few other people on here, I am a bit unhappy with the tone of my Spector. I am looking for someone to send me some 2 year old diagrams of the dip switches for starters. Also, how would I go about wiring it for 18v? What are some other suggestions for improving the tone of this bass without changing the pickups? What would be a good aftermarket two-band vol. vol. preamp? (Ex. Aguilar OBP-1. Any others?) I was hoping to summarize the info and problems from my search as well as get some more info. Thanks guys!