I'm upgrading a ray24ca, I have a 1994 stingray4 pickup loaded in there so far. I tried the stock preamp with it just to see how they worked together and it wasn't very compatible , so I've been searching for a ray34 3 band or a real stingray 3band. They are so hard to find, I put a nordy 2b 3a in it cuz I got it dirt cheap and it's kinda blah as well. I also didn't know they stopped making musicman preamps and the preamp I put in (2b 3a) was for any ol bass.. so I'm still on the hunt.!