So here it is. I bought a Carvin B4 in 1998 when I returned to bass playing. This bass is outstanding in every way except low end. It is built as well as any other bass I've played, it has the fastest neck I have ever played, it is super punchy and has great harmonics. Also, it weighs only seven pounds; I can play it for hours. I have owned her for eight years and am very attached. However, this bass has no low end. Therefore, I never play it out. I guess the question is this: Do I keep it and try to improve the electronics or sell it to buy another Jazz? Any advice or opinions are welcome. Thanks!