How sleeves compare and which sleeve to use on a Bach 37

[Louise Finch]

Hi

I have a 1994 Bach 7C, 2005 Bach 3C (another Bach 3C bought used with the same lettering style), a Bach 10 backbore from a Bach mouthpieces converted to have Warburton threads (I bought this used, I have no idea what era), and a Bach 10 backbore with Warburton threads created from a 2nd 2005 Bach 3C.

Apart from my 1994 Bach 7C, which inserts 25mm in my Bach, all of these insert 24mm, which is equivalent to a James R New 6 sleeve.

However I always thought that a Reeves 5 or possibly a 5.5 replicated a typical Bach insertion amount. Do James R New sleeves insert equivalent to a one size smaller Reeves sleeve or something?

Also, for reference I use a James R New 6.5 sleeve on my Yamaha Xeno II, and that inserts like a typical Yamaha trumpet mouthpiece.

Many thanks

Lou
_________________
Trumpets:
Yamaha 8335 Xeno II
Bach Strad 180ML/37
B&H Oxford
Kanstul F Besson C
Yamaha D and D/Eb
- James R New Custom 3Cs
Flugel:
Bach Strad 183 - Bach 3CFL
Cornets:
Yamaha Neo + Xeno
Bach Strad 184ML
B&H Imperial
- Kanstul Custom 3Cs

[Christian K. Peters]

Hello Lou,
If all receiver to leadpipes were the same, the measurements would be valid. The real measure is the mp to venturi, that creates the gap, is what you really want to know. If you are only going on openness/stuffiness and response, then you just rely on the senses to give you the answer. My horns play well with a 3-4mm gap. Sleeves 5, 5.5 or 6 depending on horn. My Warburton and Schilke mp shanks fit in that range for my Schilkes.
_________________
Christian K. Peters
Schilke Loyalist since 1976

[Louise Finch]

[Jon Arnold]

This is an interesting list on Frost Custom Brass with the varying degrees of gap among mouthpieces.

https://www.frostcustombrass.net/gapmeasurements.html

[Louise Finch]

[Louise Finch]

As I haven't had many replies, I've amended the topic title, and will repost my original question below:

Hi

I have a 1994 Bach 7C, 2005 Bach 3C (another Bach 3C bought used with the same lettering style), a Bach 10 backbore from a Bach mouthpieces converted to have Warburton threads (I bought this used, I have no idea what era), and a Bach 10 backbore with Warburton threads created from a 2nd 2005 Bach 3C.

Apart from my 1994 Bach 7C, which inserts 25mm in my Bach, all of these insert 24mm, which is equivalent to a James R New 6 sleeve.

However I always thought that a Reeves 5 or possibly a 5.5 replicated a typical Bach insertion amount. Do James R New sleeves insert equivalent to a one size smaller Reeves sleeve or something?

Also, for reference I use a James R New 6.5 sleeve on my Yamaha Xeno II, and that inserts like a typical Yamaha trumpet mouthpiece.

Many thanks

Lou


That is what I asked originally, and I have a further question. Most Bach mouthpieces insert 24mm in the receiver of my Bach 37. A James R New 6 sleeve inserts 24mm.

A Yamaha mouthpiece inserts 25mm in the receiver of my Bach 37 (and Xeno II), as does a James R New 6.5 sleeve.

It appears to me therefore that a James R New 6 sleeve replicates the insertion amount of a Bach trumpet mouthpiece, and that a James R New 6.5 sleeve replicates the 1mm greater insertion amount of a Yamaha trumpet mouthpiece.

But people seem to be using Reeves 5 sleeves on Bachs. Is a Reeves 5 sleeve equivalent to a Jim New 6, or does a Reeves 5 sleeve give a larger gap than a Bach trumpet mouthpiece, and people are preferring larger gaps on Bachs than with a Bach mouthpiece?

I'd really like to know.

I'd also like to know whether Reeves sleeves will fit my backbores cut for James R New sleeves, as Jim New I believe, does not currently have any sleeves in stock and is making them to order. I'd rather have the option of maybe trying a few, then sending back what doesn't work.

Many thanks

Lou
_________________
Trumpets:
Yamaha 8335 Xeno II
Bach Strad 180ML/37
B&H Oxford
Kanstul F Besson C
Yamaha D and D/Eb
- James R New Custom 3Cs
Flugel:
Bach Strad 183 - Bach 3CFL
Cornets:
Yamaha Neo + Xeno
Bach Strad 184ML
B&H Imperial
- Kanstul Custom 3Cs