34mm cup depth for bass trombone?

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AlexBassBone
Posts: 35
Joined: Mar 23, 2023

by AlexBassBone »

Hello! I'm new here, I'm writing this post to ask if there's anyone out there who can give their opinion.

I had always played with very deep cups and large and wide bores, but for a few months now I have been playing with a 34mm deep and 7'5 bore mouthpiece and I am super happy.

What is the minimum cup depth you think is appropriate for bass trombone? Think 34mm is too shallow?

Thank you all! :good:
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Posaunus
Posts: 5018
Joined: Mar 23, 2018

by Posaunus »

How is "cup depth" measured? I've never quite understood this spec. Not all manufacturers give this info.
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AlexBassBone
Posts: 35
Joined: Mar 23, 2023

by AlexBassBone »

Hi! so in theory it is measured from the rim to where the bore begins to open.
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WGWTR180
Posts: 2152
Joined: Sep 04, 2019

by WGWTR180 »

What’s the inner rim diameter?
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BigBadandBass
Posts: 270
Joined: Feb 13, 2020

by BigBadandBass »

There is no minimum and maximum allowed depth, there are just ones that typically sound worse and some that typically sound better. I would be curious to know what piece you are using
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AlexBassBone
Posts: 35
Joined: Mar 23, 2023

by AlexBassBone »

[quote="WGWTR180"]What’s the inner rim diameter?[/quote]

Hi! The inner rim diameter is 27'5mm :good:
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AlexBassBone
Posts: 35
Joined: Mar 23, 2023

by AlexBassBone »

[quote="BigBadandBass"]There is no minimum and maximum allowed depth, there are just ones that typically sound worse and some that typically sound better. I would be curious to know what piece you are using[/quote]

Well yes, in the end it's something subjective... I really like it at the moment.

It is a modular mouthpiece from Romera Brass, Catalonia (Spain) :hi:
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WGWTR180
Posts: 2152
Joined: Sep 04, 2019

by WGWTR180 »

[quote="AlexBassBone"]<QUOTE author="WGWTR180" post_id="205693" time="1679671722" user_id="7573">
What’s the inner rim diameter?[/quote]

Hi! The inner rim diameter is 27'5mm :good:
</QUOTE>

Ok. Well, for me, that might be a bit deep. However shape and a million other factors play into it.
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Kevbach33
Posts: 295
Joined: May 29, 2018

by Kevbach33 »

34mm isn't outside the realm of possibility, even in that diameter. For instance, going off Giddings' spec sheet, the Adriano (id 27.83mm) has a cup depth of 36.7mm. That's deeper than the specs for the Nor'Easter (34.16mm depth with a 29.06mm diameter).
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Doug_Elliott
Posts: 4155
Joined: Mar 22, 2018

by Doug_Elliott »

To me, specifying "cup depth" that way is absurd.

If the throat is higher or lower but everything else is the same, those are different cup depths?
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ZacharyThornton
Posts: 615
Joined: Mar 23, 2018

by ZacharyThornton »

^ this.