Dave Kuratsu

Aye, thought about that.... Not tried other strings as the current ones are some expensive labe lla flats.... But did inspect for kinks and all certainly looks well.... Tbh I'm wondering if heavy flats are to blame... Ta again!

Thanks for the reply.... but as I say, they have been leveled and crowned to a high level (not literally of course). And as far as I can measure they are dead flat if neck set dead flat.... So confused Ta though!

Hi, I have a 2013 4003 that has benn levelled to within an inch of its life and plays beautifully across the board except around the 3rd to 6th fret mainly on the D string, slightly on the A string, which have a slight fret buzz on the decay of the note. I'm stumped. The bass is currently flat neck with high action (3mm at 12th) and I've tried it with various levels of relief and action height. And always this buzz.... less so with high action or relief but still that area is the first to fret out. The bass does seem to resonate more around the offending notes so could it be that pushing energy back into the string resulting in the rattley decay?... The leveling seems good within 1 or 2 thou, with neck forced dead straight i can find no high fret. Any body got any ideas? Any thoughts much appreciated, Dave