The last thing I want to do is fuel the fire here, but having owned a total of nine Carvin's and two Sadowsky Metro's, I feel the need to weigh in on the discussion. If I am to be labeled a fanboi(?) of either, I suppose Carvin has earned it with my money. For the record, I am now currently down to two Carvin's and one Metro.
In my opinion (for what it's worth), nothing I have tried sounds better than the Sadowsky. That obviously does not make it a fact, it's just
my opinion. We should all know at this point that tone is a subjective thing and I simply prefer the modern tone of the Sadowsky. That said, my SB4000 sounds freakin' sweet!! At last week's gig I ran the SB4000 through my Carvin B1500 and the tone was to die for!! I remember thinking to myself "wow, this sounds almost as good as my Sad..." well, you get the point. Let me put it this way though...it would be much easier for me to live without the Sadowsky (if need be) now that I have my SB4000. I'm sorry if anyone views that as a jab at Carvin because it was not meant to be. In any case, for those that are not comfortable dishing out the extra cash for a Metro or simply prefer more of a tradtional J-bass vibe, I'm sure you will be thrilled with an SB series bass. I certainly have no regrets buying mine.
One area where I feel the Carvin holds it's own against the Sadowsky is build quality. One of the things that kept me going back to Carvin to order bass after bass is the build quality. If Sadowsky's build quality is actually better than Carvin's, then I'm not sure where it is. All of my Carvin's have felt very solid, had great fretwork, excellent setup and ZERO issues.
Still, the Sadowsky feels more comfortable in my hands. The SB4000 is not far off but I find myself reaching more to get to those higher frets. However, in Carvin's favor, I am totally digging the fresh new look of my SB4000. I don't know of any players on the local scene that have one yet...except for me.