Kanstul 1525 / Bach mouthpiece

[Orthonormal]

I've played trumpet for many years, and have gone from a Bach 5C to a 1C, tried a 7C, and finally settled on a Yamaha Shew Jazz.

I recently bought a (used) Kanstul 1525 flugelhorn with a Bach receiver ("B" imprint). The salesman recommended a Bach 3CFL mouthpiece, which plays reasonably well except that with the receiver pushed all the way in the horn plays about 15c flat for me. The mouthpiece doesn't go into the receiver all the way up to the end of its smooth taper. I saw it suggested somewhere that the proper fit was to have it go in that far.

I'm not certain that the mouthpiece length is the problem, but I wonder what I can do about it. My other horns (a Kanstul trumpet and a Bach cornet) are in tune with their slides pulled out about 1/2".

[jengstrom]

Mine did the same thing. Yes, you should try other mouthpieces to see if the Bach aggrevates the issue, but mine played flat no matter which piece I used.

I finally sent my horn to Flip Oakes, who designed the horn. He did a valve alignment and cleared out a few solder blobs. He also determined that mine had been made with a bell tail that was about a half inch too long. That wouldn’t have caused that much flatness, but it didn’t help.

Flip tweaked my leadpipe so it could be inserted a little further into the horn.

I don’t know if it was the leadpipe tweak, the alignment, or running the bore tool through the horn (most likely a combination of the 3), but it’s a whole new horn. It plays more even throughout, it doesn’t have wonky out of tune notes any more, and the tuning slide isn’t all the way in any more.

At a minimum, I would suggest you find someone who can do a good valve alignment.

As a side note, you might consider a different mouthpiece. The Bach are easy to play, but they are long and the cups are shallow. The sound is bright and I don’t think mine did any favors to the intonation. I personally like GR’s and Monettes, but there are other well repected flugel mouthpieces too, like Curry or Flip Oakes.

John
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Bach 43*
Bach 72*
Bach Chicago C
Yamaha YTR-761 D/Eb
Kanstul 1525
Bach 196 picc

[adagiotrumpet]

I have a Flip Oakes flugel mouthpiece that it is quite a bit shorter than my other flugel mouthpieces. I think Warburton may also have a short model flugel mouthpiece.

[scatanas]

On my 1525 I use a Warburton 3 and it’s just awesome.
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Martin Bohme Tumultus
Kanstul 1525

[Orthonormal]