what i can tell is that they were made in japan (eikosha music) they stopped production in circa 2006 and they won Guitar and bass magazine sub £500 bass in 2005. there are many on here that will probably know more about them. all i can say is that i took a punt on it and its perfect in every way .balance , neck , looks ,playability and the range of tones is just staggering. i only own 7 basses , but always end up thudding away on this one over the others. and as mentioned by me before , i can actually go straight for the tone i am looking for now without blindly twiddling thanks to you guys