Hey there, I have a jazz bass that I have been playing for a while now. I made it out of parts from a licensed store, and put the custom shop 60s pickups in it. The more I play it the more I notice that it only sounds decent the day you put on new strings, after that It starts to sound completely dead. I don't know if there is any way to improve the sound of it, or if it is purely the spirit of the instrument that sounds like crap. I thought about putting a preamp in it to hopefully improve it. It just makes me really sad that this american made bass sounds worse than a squier most of the time. Should I toss it or is there a better way to try and revive it?