What can rattle/vibrate inside a double bass?

[Bin Hire]

Originally Posted by Ken Smith

Is the rattle metallic sounding, wood-type sounding or a little of both?

The most common metallic problem is the endpin 'inside' the bass when it's long. Also, the tuner plates as well touching the pegbox.

Try and find out 'where' the rattle is, up, down, middle, like that. Like I said, an old bass I just got back from restoration had a rattle at the 'fret' of the tailpiece because the downward angle off the bridge was a tad shallow. This was only noticed if I played hard or if I raised the bridge which lifted the strings off the TP Fret even higher. It went in my mind from a top removal and internal search for something loose to an actual 5 minutes of slight 'filling' of which I have over 40 years of experience doing.

Thank you very much for your thoughts. I think the rattle is coming from the lower end. It seems to shoot out, sounding almost like a wooden ruler being held tightly with one hand and flicked, when the octave C (on G string) is played.
Again thank you for your concern.
Bin

[Bin Hire]

Apologies for not posting earlier and many thanks Ken for the advice. It turned out that the front wasn't stuck down properly. The luthier re glued it and now my bass is sounding fantastic. Cost $50. I bought him a bottle of wine too because I was very grateful. I'm very lucky.