Ken's Corner (Bass Forums Sponsored By KSB)

Go Back   Ken's Corner (Bass Forums Sponsored By KSB) > Double Basses > Luthier's Corner

Reply
 
Thread Tools Display Modes
  #1  
Old 05-26-2014, 01:40 AM
Bin Hire's Avatar
Bin Hire Bin Hire is offline
Senior Posting Member
 
Join Date: 09-22-2010
Location: Lower Hutt
Posts: 202
Bin Hire is on a distinguished road
Default What can rattle/vibrate inside a double bass?

A friend has a lot of rattle/vibration problems. He thinks it might be that the face isn't stuck down properly. Is this a possibility? I know there's a bass bar inside, bit is there something else that could be causing a rattle?
Reply With Quote
  #2  
Old 05-26-2014, 02:27 AM
Ken Smith's Avatar
Ken Smith Ken Smith is offline
Bassist, Luthier & Admin
 
Join Date: 01-18-2007
Location: Perkasie, PA
Posts: 4,994
Ken Smith is on a distinguished road
Question plenty

Quote:
Originally Posted by Bin Hire View Post
A friend has a lot of rattle/vibration problems. He thinks it might be that the face isn't stuck down properly. Is this a possibility? I know there's a bass bar inside, bit is there something else that could be causing a rattle?
No way to answer this as anything can be loose. Look inside and count the pieces that are not outside and all them up.

I had a noise the other day on a recently restored 1840 French bass. 100s of pieces of wood in there. Then, I realized it was the downward angle of the strings to the tailpiece so I slight re-cut the back end of the slots and fixed it.

It can be anything so take it to a professional. Hopefully they will find it and not take you to the cleaners.

You didn't say what kind of bass or its age or condition. Pictures would help, maybe.
Reply With Quote
  #3  
Old 05-26-2014, 03:14 AM
Bin Hire's Avatar
Bin Hire Bin Hire is offline
Senior Posting Member
 
Join Date: 09-22-2010
Location: Lower Hutt
Posts: 202
Bin Hire is on a distinguished road
Default

Thanks for replying Ken,
The bass is a Christopher that was built in the early 2000s. It's fully carved. A very nice bass - I've played it. It is in good condition. My friend has booked it in to a luthier next week.
Thank you for your advice.
Attached Thumbnails
Click image for larger version

Name:	Christopher.jpg
Views:	204
Size:	1.49 MB
ID:	3003  
Reply With Quote
  #4  
Old 05-26-2014, 01:06 PM
Ken Smith's Avatar
Ken Smith Ken Smith is offline
Bassist, Luthier & Admin
 
Join Date: 01-18-2007
Location: Perkasie, PA
Posts: 4,994
Ken Smith is on a distinguished road
Lightbulb also..

Quote:
Originally Posted by Bin Hire View Post
Thanks for replying Ken,
The bass is a Christopher that was built in the early 2000s. It's fully carved. A very nice bass - I've played it. It is in good condition. My friend has booked it in to a luthier next week.
Thank you for your advice.
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.
Reply With Quote
  #5  
Old 05-27-2014, 01:35 AM
Bin Hire's Avatar
Bin Hire Bin Hire is offline
Senior Posting Member
 
Join Date: 09-22-2010
Location: Lower Hutt
Posts: 202
Bin Hire is on a distinguished road
Default

Quote:
Originally Posted by Ken Smith View Post
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
Reply With Quote
  #6  
Old 06-23-2014, 12:08 AM
Bin Hire's Avatar
Bin Hire Bin Hire is offline
Senior Posting Member
 
Join Date: 09-22-2010
Location: Lower Hutt
Posts: 202
Bin Hire is on a distinguished road
Default

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.
Reply With Quote
Reply


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump


All times are GMT -4. The time now is 02:03 PM.


Powered by vBulletin® Version 3.7.2
Copyright ©2000 - 2018, Jelsoft Enterprises Ltd.
Copyright 2007 - Ken Smith Basses, LTD. (All Rights Reserved)