Conn Dual Bore Mouthpiece Choice
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Conn Dual Bore Mouthpiece Choice
Hello!
I have recently acquired a 1928 Conn 76h that's a .500/.525 dual bore straight horn. I <3333 love it, but the Yamaha 48 I use for everything doesn't slot right!
The Yamaha Nils Landgren is a 48 with a shank designed for dual bores, but in the unlikely event that doesn't work out, what are my other options? Dual Bore is tricky with the slotting.
I have recently acquired a 1928 Conn 76h that's a .500/.525 dual bore straight horn. I <3333 love it, but the Yamaha 48 I use for everything doesn't slot right!
The Yamaha Nils Landgren is a 48 with a shank designed for dual bores, but in the unlikely event that doesn't work out, what are my other options? Dual Bore is tricky with the slotting.
Last edited by Buffalospiritgathering on Fri Sep 12, 2025 7:03 pm, edited 2 times in total.
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Re: Conn Dual Bore Mouthpiece Choice
I seem to recall Doug Elliott designing some shanks specifically for Dual Bore Horns, though I don't know if he had one specifically for .500-.525.Buffalospiritgathering wrote: Fri Sep 05, 2025 8:49 am Hello!
I have recently acquired a 1928 Conn 76h that's a .500/.525 dual bore straight horn. I fucking love it, but the Yamaha 48 I use for everything doesn't slot right!
The Yamaha Nils Landgren is a 48 with a shank designed for dual bores, but in the unlikely event that doesn't work out, what are my other options? Dual Bore is tricky with the slotting.
David S. - daveyboy37 from TTF
Bach 39, LT36B, 42BOF & 42T, King 2103 / 3b, Kanstul 1570CR & 1588CR, Yamaha YBL-612 RII, YBL-822G & YBL-830, Sterling 1056GHS Euphonium,
Livingston Symphony Orchestra NJ - Trombone
Bach 39, LT36B, 42BOF & 42T, King 2103 / 3b, Kanstul 1570CR & 1588CR, Yamaha YBL-612 RII, YBL-822G & YBL-830, Sterling 1056GHS Euphonium,
Livingston Symphony Orchestra NJ - Trombone
- dukesboneman
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Re: Conn Dual Bore Mouthpiece Choice
I used to have a Conn 32H , also 500/522 bore and My Mount Vernon7C worked fine in it.
Could you post a picture of the horn ? I never knew they made another horn with that configuration.
Could you post a picture of the horn ? I never knew they made another horn with that configuration.
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Re: Conn Dual Bore Mouthpiece Choice
I was not aware that the Yamaha Nils Landgren mouthpiece was designed for dual bore.tbonesullivan wrote: Fri Sep 05, 2025 9:30 amI seem to recall Doug Elliott designing some shanks specifically for Dual Bore Horns, though I don't know if he had one specifically for .500-.525.Buffalospiritgathering wrote: Fri Sep 05, 2025 8:49 am The Yamaha Nils Landgren is a 48 with a shank designed for dual bores, but in the unlikely event that doesn't work out, what are my other options? Dual Bore is tricky with the slotting.
Doug does not currently list a shank designed for dual-bore 0.500"/0.525" bore trombones.
http://www.dougelliottmouthpieces.com/tenortrb.html
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Re: Conn Dual Bore Mouthpiece Choice
I make lots of stuff that I don't list...Posaunus wrote: Fri Sep 05, 2025 10:28 amI was not aware that the Yamaha Nils Landgren mouthpiece was designed for dual bore.tbonesullivan wrote: Fri Sep 05, 2025 9:30 am I seem to recall Doug Elliott designing some shanks specifically for Dual Bore Horns, though I don't know if he had one specifically for .500-.525.
Doug does not currently list a shank designed for dual-bore 0.500"/0.525" bore trombones.
http://www.dougelliottmouthpieces.com/tenortrb.html
My unlisted backbore 3.5 is for 500/525
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Re: Conn Dual Bore Mouthpiece Choice
Sweet, Doug! I've been having some glitching with the message system. I received the message that I sent you, back three times addressed from you! Lol
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Re: Conn Dual Bore Mouthpiece Choice
Obligatory from a bred New Yorker. Fuggedaboutit.
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Re: Conn Dual Bore Mouthpiece Choice
I work with and know many New Yorkers who don't drop the F bomb on a public forum where people of all ages check in. Besides you might be from Buffalo going by your user name. Does that even count as New York? LOLBuffalospiritgathering wrote: Fri Sep 05, 2025 6:50 pmObligatory from a bred New Yorker. Fuggedaboutit.
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Re: Conn Dual Bore Mouthpiece Choice
Delete post please!!
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Re: Conn Dual Bore Mouthpiece Choice
But why? It's just getting good.

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Re: Conn Dual Bore Mouthpiece Choice
Though I am newly coming back to trombone, particularly the dual bore 32H I recently acquired, I have had no problem playing it with a Schilke 47. I tried a couple of others, Bach 6.5AL, 1939 Bach 12 that came with the horn, larger Schilkes (51 (which I use on my bass trumpet), 52), but I have found that of this limited sample, I like the Schilke 47 the best. May learn differently in the future as I get more precise in my playing, but it is another point on the graph.dukesboneman wrote: Fri Sep 05, 2025 10:16 am I used to have a Conn 32H , also 500/522 bore and My Mount Vernon7C worked fine in it.
I would be very curious to hear more about how the various mouthpiece parameters affect slotting, etc., particularly on these dual bore trombones.
CGAIII
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Re: Conn Dual Bore Mouthpiece Choice
On my weekly Friday Night Big Band gig, one of the guys had just bought a 32H and brought it to the gig.
It played beautifully , just as I remembered .
Effortless upper range and some meat on the bottom of the horn . A little front heavy but that`s OK
Now I`m looking around the closet and thinking about what can sell and pick one up? Hmmmmm....?
It played beautifully , just as I remembered .
Effortless upper range and some meat on the bottom of the horn . A little front heavy but that`s OK
Now I`m looking around the closet and thinking about what can sell and pick one up? Hmmmmm....?
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Re: Conn Dual Bore Mouthpiece Choice
Doug's 3.5 shanks are great.!
I had Yamaha 0.500-0.525, 8 inch bell intermediate horn and 4 shank seems like a bit too open, while 3 seems like a little bit restricting, maybe because the Yamaha had large bore-ish neckpipe and bell throat. And 3.5 was better than 3 or 4.
Although I sold the horn because the horn itself is somewhat dull. Thick bell construction, maybe because it is designed for school use, and that dullness is which I didn't like. I feel sorry that Yamaha don't produce pro level model with 0.500-0.525.
I have no idea whether the 3.5 work well with other duo bore horns though. Especially for Conns, I assume that neckpipe and bell throat might have been designed smaller than large bore counterparts. (which might be good thing for 3.5 shank, or not)
I had Yamaha 0.500-0.525, 8 inch bell intermediate horn and 4 shank seems like a bit too open, while 3 seems like a little bit restricting, maybe because the Yamaha had large bore-ish neckpipe and bell throat. And 3.5 was better than 3 or 4.
Although I sold the horn because the horn itself is somewhat dull. Thick bell construction, maybe because it is designed for school use, and that dullness is which I didn't like. I feel sorry that Yamaha don't produce pro level model with 0.500-0.525.
I have no idea whether the 3.5 work well with other duo bore horns though. Especially for Conns, I assume that neckpipe and bell throat might have been designed smaller than large bore counterparts. (which might be good thing for 3.5 shank, or not)
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Re: Conn Dual Bore Mouthpiece Choice
Yep, 2nd the 3.5. Works great in all the 500/525 horns I've put it in. Also was swapping between a 3 and 4 depending on the gig but the 3.5 I haven't switched once. FWIW I use mine in a custom King 500/525 but I suspect it would also work well in the 32H. The bell throat is not too dissimilar on mine from the Conns and I use a 32H pipe in my King.
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Re: Conn Dual Bore Mouthpiece Choice
I'll also support the use of the DE 3.5 shank. I use it on my Yamaha 456G with a E cup. Tried it against the 3 and 4 and like others found the 3 a tad tight and the 4 a bit open.
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Re: Conn Dual Bore Mouthpiece Choice
I’m glad to hear the D3.5 and E3.5 are working well on .500/.525 dual bores.
That’s what I designed them for, but I don’t have a .500/.525 to try myself.
That’s what I designed them for, but I don’t have a .500/.525 to try myself.
"I know a thing or two because I've seen a thing or two."
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Re: Conn Dual Bore Mouthpiece Choice
In the guitar world that's GAS - Gear Acquisitioning Syndrome - and something that has to be constantly negotiated to keep in check. I know of some non-professional guitar guys who owns around 50-100 guitars just for the sake of it, but I've never heard of a corresponding thing with trombones.dukesboneman wrote: Sat Oct 11, 2025 8:21 am Now I`m looking around the closet and thinking about what can sell and pick one up? Hmmmmm....?
What's the most trombones you've heard that anyone owns? I once knew a now passed semi-pro trombonist who owned like thirty different horns and I know a trumpeter who owns about sixty trumpets, and high as those numbers are they are not close to a hundred.
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Re: Conn Dual Bore Mouthpiece Choice
Well, I acquired this trombone from the largest hoarding of trombones incident I have ever heard of. This guy was in Columbus, Ohio and had like... 300+ horns in a basement... Wasn't even a player. He was renting too! He left everything and it took the guy who sold it to me... Like 8 months to clear it out!
So I did some research, and Doug's lessons made the biggest change in my playing career of any lesson I have ever had, but I can't afford the whole DE setup that I want...
I asked around and managed to acquire myself a Remington Constellation that was paired with several other dual bore horns and it plays very well! I tend to play pretty bright, and the mouthpiece/bone combo is great for me! And at $30, now I am pretty convinced that this combo works for now. I could definitely get a bigger sound, but I at least can play this combo now!
So I did some research, and Doug's lessons made the biggest change in my playing career of any lesson I have ever had, but I can't afford the whole DE setup that I want...
I asked around and managed to acquire myself a Remington Constellation that was paired with several other dual bore horns and it plays very well! I tend to play pretty bright, and the mouthpiece/bone combo is great for me! And at $30, now I am pretty convinced that this combo works for now. I could definitely get a bigger sound, but I at least can play this combo now!