Over the Iast six months I have acquired two Fender mij jazz basses both from around the early 90's. Both have been recently set up by a luthier and both fitted with DR Hi-Beams.
Also, both basses have had their stock pickups replaced. One with Di Marzios, the other Seymour Duncan Hot Stax.
Now, through an amp both basses seem perfectly acceptable as the amp is able to colour the frequencies etc but when played acoustically, which I often do, for convenience, while watching tv, strengthening my fingers etc, there is a huge difference between the two instruments.
One bass is noticeably lighter than the other and has a much darker fingerboard. This bass, when tested unplugged is bright, full of sustain and rings like a bell.
The other, heavier bass however sounds dull and lifeless in comparison.
My question is, can it be the weight alone of the instrument that is causing such a difference in tonal quality or is it as simple as the neck and body are a poor match and nothing can be done to bring the duller instrument up to par with the brighter sounding one?
Any suggestions?