The bass in question is a 4 string Peavey Fury.. maple neck and fingerboard I've tweaked the setup on this bass quite a bit, and this combined with a sleek J-like neck has resulted in a bass that plays quite a bit better than I'd expect a $150 bass to play. I've always been careful when adjusting my truss rod, and I did quite a bit of research before I tried it the first time.. over time I've read up more on the subject on this forum, various newsgroups and other places on the internet to make sure my methods were safe and correct. The last time I touched the truss rod was about a week ago when I put new strings on. I tightened it a bit less than an 8th of a turn. Last night I had the bass at band practice and everything seemed completely normal. The gigbag that I use to transport it is a fairly tough Peavey bag and I was careful when bringing it home. Nothing out of the ordinary happened to it at all last night. This morning when I plugged in an played I noticed a strange, barely audible sort of buzzing noise. I turned my amp off and found the noise to be quite a bit louder against the unamplified sound of the bass. The rattling of a broken truss rod is actually the first thing I suspected (I've played an acoustic guitar with a broken truss rod, so the sound was vaguely familiar), but I blocked that out of my mind and checked everything to see what else could be buzzing. The tuners and bridge seem completely secure, the strings are not rattling in the nut, and they are not buzzing against the frets. I took my pickguard off to see if anything in there could be buzzing, but it looks fine inside. The buzzing is present with all strings, but much moreso with the E and A. It takes a more forceful pluck for it to come out with the D or G. It is more noticeable with open strings than fretted. It is not nearly as audible when amplified, but still present. It is probably most present if I strike 12th fret harmonics on all strings at once. It definitely seems to eminate out of the neck. I tried to see if the rod gave any resistance when I tried to turn it, but I can't tell if my allen key is getting into the slot or not.... if it is there is no resistance, otherwise the rod must have somehow gotten out of reach. Damn. I don't think the buzz would really be a problem when playing live (at least not now). Is the neck pretty much junk now, or would it be fine to keep using it? (at least temporarily) The neck was my favorite thing about this bass, but I suppose replacing it is the most economical way to still have a fretted bass.