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Discussion Starter #1
Hi there,
I really didn't realize the impact of bore difference so much. I was more focusing on the chamber impact. I must admit I don't quite know the impact of either of them.
I bought a Dukoff LD7 recently and I got a comment about it:
" it is quite unique; full sized chamber with a very open baffle in a medium bore piece. Bob Carpenter said it was a great Dukoff."
So if the baffle is low (does it mean open based on above comment?) does it mean the chamber is big. For instance the mouthpieces like Dukoff D that the baffle is high and long, it takes away from the chamber so the chamber is small, right?
Now, how the bore could be different. I thought it has to come out to match the neck. Does the large bore mean they find a tool to carve the inside of the mouthpiece, or they drill or cast large and then they choke it at the end to match the neck?
What are the sound differences between large bore and medium / small bore?
Can you give me examples of the mouthpieces that have large bore and medium or small chamber, or all large? How about small bore and large chamber? What are the sound quality differences in different combinations of bore and chamber sizes? I brought up the issue of role over baffle vs. long high baffle with the sudden drop to the chamber. How could that play a role in the sound in combination with the chamber and bore?
I know it sounds a lot of issues are raised about the mouthpiece design. I just want to have my head wraped around the subject properly so I have a better idea for my future approach.
The other comment I got was also highlighting the impact of mouthpiece on a large bore horn. So I guess that's another variable to be added to the combination.
Please help.
Thanks.
A
 

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Grafton alto | Martin Comm III tenor
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People seem to use the term "bore" to mean either the diameterbif thenshank or the diameter of thechamber. I always thought the bore of the shank was defined by the need to fit the neck.

Sometimes it is filled completely by the neck, if not then the bore between neck and chamber is like an extension of the chamber I suppose, but you don't get very much difference in dimension due to the need to fit the neck, as mentioned.


It is the chamber, baffle and rail curve that will have affect sound and intonation. I haven't before heard the term "open baffle" but your assumption it means low makes sense.
 

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Discussion Starter #5
People seem to use the term "bore" to mean either the diameterbif thenshank or the diameter of thechamber. I always thought the bore of the shank was defined by the need to fit the neck.

Sometimes it is filled completely by the neck, if not then the bore between neck and chamber is like an extension of the chamber I suppose, but you don't get very much difference in dimension due to the need to fit the neck, as mentioned.


It is the chamber, baffle and rail curve that will have affect sound and intonation. I haven't before heard the term "open baffle" but your assumption it means low makes sense.
Thanks. I will dig into the subject a bit more but it's good to know players are not concerned about the bore so much as the other variables.
 

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