Can anyone xplain the function of the soundpost and bass bar on a stand up bass? Would it be helpful on a wine box bass?

Views: 46

Reply to This

Replies to This Discussion

Hi, I’ll give you the short version, as the viol family is steeped in tradition, measurements and physics.
Basically, the sound post in a bowed instrument has a very crucial role to play, and its fitting and positioning is very important to the tone and volume of the instrument.

The bass bar is a support brace and sits under the bass side leg of the bridge.

As with all stringed instruments plucked or bowed, the strings create a minute rocking action in the bridge that in turn moves the top, which in turn moves air in the box etc, etc. The rocking direction on our guitars is usually front to backwards, but the string vibrations in the viol family are usually side to side, due the pulling/pushing action of the bow.

So, to allow the bridge to “rock” more efficiently sideways a post is used under/near the treble foot of the bridge so that the bridge may pivot on the less flexible bass bar.
This post of course couples the top to the back and brings the back into the sound producing arena. The top and back are usually “tuned” to work with each other, as they are in good full-size guitars.

Will it work/be beneficial in a small wine box? I have not been there, but think not, but if you try it let us know.
Taff ….Oh that was the short version Ha ha.

 Thanks for the detailed reply. I'll have to think on this. I don't expect the instrument to be bowed. I'm not adverse to doing what is needed but I also don't like the idea of doing what is not needed. Agian, thanks for the reply; very informative.

Hi JD thanks your welcome.

Just thought I would mention that an acoustic bass guitar normally has guitar style bracing and no soundpost.

Taff

Thanks Taffy, I appreciate your input. I think I'm going skip the sound post.

RSS

The Essential Pages

New to Cigar Box Nation? How to Play Cigar Box GuitarsFree Plans & How to Build Cigar Box GuitarsCigar Box Guitar Building BasicsCigar Box Guitar Parts Store

Site Sponsor

Recommended Links & Resources

Forum

Califest cancelled?!

Started by Silent Jim in Fests and Concerts: Organizing and Promoting. Last reply by KOOL DOG HOOCH 5 hours ago. 1 Reply

Latest Activity

Dave Lynas liked David Hopkins's photo
1 minute ago
Dave Lynas posted photos
3 minutes ago
Gary O'slide posted a video
13 minutes ago
Fred McNaughton commented on Fred McNaughton's video
Thumbnail

Jet Engine Flight Suit

"Thanks so much Derek!  I appreciate you taking the time to listen and I appreciate your…"
38 minutes ago
Dennis "Denbo" Goodinson liked Andries D. EKER's video
2 hours ago
Danny Gordon posted a blog post

POSTING AUDIO ONLY FILES

I NEED HELP, i HAVE NEW SOFTWARE FOR AUDIO ONLY CALLED AUDACITY. YOU CAN RECORD EACH TRACK…See More
2 hours ago
Allan Zolnekoff commented on Allan Zolnekoff's video
Thumbnail

trim.2B6DC2E5-CB9B-4CE3-B5AD-46B2150B3337

"Thanks!  I installed 3 stereo pickups wired to 2 - 5 way pickup switches. It gives me 24…"
2 hours ago
Danny Gordon commented on Andries D. EKER's video
Thumbnail

BCB I dont want to know A D Eker 2020

"VERY WELL DONE MY FRIEND, YOU HAVE BEEN REALLY ROCKING IT LATELY. "
2 hours ago
Danny Gordon liked Andries D. EKER's video
2 hours ago
Dennis "Denbo" Goodinson commented on Randy S. Bretz's video
Thumbnail

First Sound

"Superb build, denotes lots of patience, sounds great & sustains longer than the video, more…"
2 hours ago
Danny Gordon commented on Allan Zolnekoff's video
2 hours ago
Danny Gordon liked Allan Zolnekoff's video
2 hours ago

Music

Loading…

© 2020   Created by Ben "C. B. Gitty" Baker.   Powered by

Badges  |  Report an Issue  |  Terms of Service

\uastyle>\ud/** Scrollup **/\ud.scrollup {\ud background: url("https://storage.ning.com/topology/rest/1.0/file/get/963882636?profile=original") no-repeat scroll 0 0 transparent;\ud bottom: 25px;\ud display: inline !important;\ud height: 40px;\ud opacity: 0.3 !important;\ud position: fixed;\ud right: 30px;\ud text-indent: -9999px;\ud width: 40px;\ud z-index: 999;\ud}\ud.scrollup:hover {\ud opacity:0.99!important;\ud}\ud \uascript type="text/javascript">\ud x$(document).ready(function(){\ud x$(window).scroll(function(){\ud if (x$(this).scrollTop() > 100) {\ud x$('.scrollup').fadeIn();\ud } else {\ud x$('.scrollup').fadeOut();\ud }\ud });\ud x$('.scrollup').click(function(){\ud x$("html, body").animate({ scrollTop: 0 }, 600);\ud return false;\ud });\ud });\ud \ua!-- End Scroll Up -->