Free blowing Bach 43 lightweight



  • Got a new toy last week: A Vincent Bach ML 180-43 lightweight 🙂

    Nice, good sounding but I noticed that this horn is way more free blowing as my -former- 180-37
    can it be that the 'A' lead pipe on the instrument causes this sensation?

    I play it now with a Warburton 4 backbore to create at least enough resistance for me since I like some resistance in the blow


  • Credentialed Professional

    "A" leadpipe? LT model Bach trumpets come standard with a 25 pipe, and some have 25-O pipes. If your trumpet has a 25-O pipe, that would open the blow slightly. Also, the 43 bell has slightly less resistance than the 37. I played various 180-37 models for years and played a LT180-43 with a 25-O pipe for awhile. The 37 trumpets always felt a little more compact and resistant (to me).



  • According to the Bach loyalist the 'A' lead pipe is officially a c-trumpet lead pipe https://www.bachloyalist.com/trumpet/trumpet_leadpipes.htm: "Longer than 25C. Many people find this has slightly less resistance than the 25C...Not much of a difference at all..."
    Maybe both the 'A' lead pipe and the 43 lightweight bell result in the free blowing sensation?

    Yesterday I tried the trumpet in the rehearsal for the amateur Symphony Orchestra (with the Warburton 4M plus 4 backbore). The sound was great, I liked it even better than my ol' 180-37
    We played Mozart Zauberflöte and Tsjaikovski 'Mozartina'


  • Credentialed Professional

    I’ve never heard of someone mounting a Bach C leadpipe on a Bb trumpet. It would certainly have dramatic effect on playability (and resistance). Glad it’s working out for you.



  • @Lawler-Bb

    The 43 is actually smaller than the 37. I would think that you are matching the resistance more easily on the 43 if the 37 seems choked. There are also many 37's that are marked incorrectly. I have seen several 43 bells that are marked 37. There are other factors also. You could have a 43 with a large venturi that you match well.

    I just remembered that you are talking about a lightweight 43. Are you comparing it to a standard 37 or a lightweight 37?


  • Credentialed Professional

    @Brian-Moon

    Brian, the 43 may be smaller, but it doesn't feel smaller. The 43 sound shape is a bit wider, too, which can contribute to a perceived less resistant feeling. I was comparing an LT43 to a standard 37. I know, not exactly apples to apples, but standard 43s (with the 25 pipe) have felt similar (to me).



  • @Brian-Moon I compared the 43* to my old 37 standard 180-37 with standard lead pipe



  • @Dirk020 and Lawler-Bb

    If you want to see the difference between 37 and 43 bells you absolutely must compare the same weight. There are many factors that could also give one the feeling that one prefers one horn over another. A major one is the consistency of the manufacturing process. You can change a trumpet .0005 in certain spots and change it dramatically.

    If one says "I prefer 43* to 37 standard" I can usually understand why.

    The stock Bachs that I have liked the most have been 37*.



  • @Lawler-Bb said in Free blowing Bach 43 lightweight:

    @Brian-Moon

    Brian, the 43 may be smaller, but it doesn't feel smaller. The 43 sound shape is a bit wider, too, which can contribute to a perceived less resistant feeling. I was comparing an LT43 to a standard 37. I know, not exactly apples to apples, but standard 43s (with the 25 pipe) have felt similar (to me).

    Your mouthpiece and playing style match the 43 well then. Not all bells marked 37 are 37 though. I have one 37 that you would think is a 43 if you didn't see the marking.


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