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Longer throat on mp helps intonation?



 
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mike ansberry
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PostPosted: Mon Dec 30, 2024 12:48 pm    Post subject: Longer throat on mp helps intonation? Reply with quote

I read here that a longer throat in your mouthpiece will make the high range and low range closer to being in tune with each other. Is this true?
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Tpt_Guy
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PostPosted: Mon Dec 30, 2024 4:30 pm    Post subject: Reply with quote

If it's balanced with the cup, backbore, and overall length of the mouthpiece, then yes it can help intonation.

However, don't expect miracles by taking a drill to a mouthpiece. Such a factor must be designed into a mouthpiece to get the best results. This is why makers such as GR and Monette advise against drilling their mouthpieces.
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Dale Proctor
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PostPosted: Mon Dec 30, 2024 6:43 pm    Post subject: Reply with quote

Generally, a longer CYLINDRICAL portion in the throat will flatten the upper register and sharpen the lower register. A shorter one will do the opposite. I had a Schilke 13A4a mouthpiece that was stuffy and played sharp for me once I got a few notes above the staff. I ran a one size larger drill bit through it, and in addition making it less stuffy, the notes above the staff were much better in tune.
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Andy Del
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PostPosted: Fri Jan 10, 2025 1:32 pm    Post subject: Re: Longer throat on mp helps intonation? Reply with quote

mike ansberry wrote:
I read here that a longer throat in your mouthpiece will make the high range and low range closer to being in tune with each other. Is this true?

It is only 1 factor in the equation and is usually referred to in discussions about throat diameter (drill sizes, like a standard Bach is #27). A longer throat may be a sign of an enlarged throat and may or may not be a good thing… That depends on the rest of the mouthpiece, the way it fits into a trumpet, and the person on the business end of the mouthpiece.
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davidkoch
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PostPosted: Fri Jan 10, 2025 2:00 pm    Post subject: Reply with quote

Tpt_Guy wrote:
If it's balanced with the cup, backbore, and overall length of the mouthpiece, then yes it can help intonation.

However, don't expect miracles by taking a drill to a mouthpiece. Such a factor must be designed into a mouthpiece to get the best results. This is why makers such as GR and Monette advise against drilling their mouthpieces.


It might also be to sell you more stuff. Not a comment to either sets of designs but they're both incredibly savvy businessmen. I mean, Dave has managed to sell people trumpet that cost more than I've paid for most of my cars.

Plus, Monette throats are already huge. I don't think anyone needs to drill one of those out lol.
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Billy B
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PostPosted: Fri Jan 10, 2025 2:44 pm    Post subject: Re: Longer throat on mp helps intonation? Reply with quote

mike ansberry wrote:
I read here that a longer throat in your mouthpiece will make the high range and low range closer to being in tune with each other. Is this true?


No
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stuartissimo
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PostPosted: Sat Jan 11, 2025 4:30 am    Post subject: Re: Longer throat on mp helps intonation? Reply with quote

davidkoch wrote:
Tpt_Guy wrote:
This is why makers such as GR and Monette advise against drilling their mouthpieces.

It might also be to sell you more stuff.

I seriously doubt that. The mouthpieces, including the throat length, are designed to be precisely balanced around the various other aspects. Messing with any part of it would be like adding another engien to a F1 car. Sure it's possible, but it would mess with the balance of the car, handling, fuel consumption, as all that. For something that is precisely designed in great detail, chances of messing up the balance are large.

Billy B wrote:
mike ansberry wrote:
I read here that a longer throat in your mouthpiece will make the high range and low range closer to being in tune with each other. Is this true?


No

Agreed. It'll probably affect intonation, but longer (or shorter) by itself is meaningless. It's relative to all other the other mouthpiece parameters (and to some extent, the instrument it's being used on, and the player's technique as well) that will make it play in tune. Depending on, say, the cup depth, you might want a different throat length to get the octaves relatively in tune. For any well-designed mouthpiece I'd expect a change to make it play less in tune; as you'd expect if the mouthpiece played better with a longer throat, it would have been made like that at the factory.
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JWG
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PostPosted: Sat Jan 11, 2025 3:15 pm    Post subject: Reply with quote

You should e-mail Mark Curry about such things: He has made a lot of mouthpieces with custom specifications and could predict what enlarging a throat by "x" thousandths of an inch would do to the playing characteristics of a particular mouthpiece.

In some cases, enlarging the throat might have a positive effect, in other cases, no effect, and, still other cases, a negative effect.

At most, if either the back bore or throat of a mouthpiece seemed at bit unfinished or rough from the manufacturer, I would attach a cotton Q-tip with some silver polish on a drill and polish the finish, remaining mindful of not removing the silver plating or exposing the brass underneath

Even polishing the interior finish of a throat and back bore can change the playing characteristics of a mouthpiece . . . you do not need to drill the throat to achieve a noticeable effect.

If the polishing effect feels undesirable, you can reverse it with a soft bristle wire brush to re-roughen the finish.
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