Anybody got any idea what size facing a berg Larsen size 4 Alto mouthpiece would have? Its the mouthpiece which came with the trevor james 'Horn' when it was bought new in the late 90's
Cheers
Chad
A bit confused here.
Firstly, the famous mouthpiece maker is/was Berg Larsen (not Larsen).
Secondly, Berg Larsen sizes are marked for the tip opening in thou (thousandths of an inch), with increments of 5 thou. So a Berg Tenor piece might be a 95 (95 thou tip opening) or 100 or 105. This holds true for soprano, alto, tenor and bari.
Have a look at the Brg Larsen website for more information on their sizing and marking codes:
Berg Larsen | How to Choose
What does the whole marking on the piece read ? It's probably something like:
80/1 SMS which is:
80= 80 thou tip opening (medium close)
1= bright tone chamber
SMS= French facing (shorter with a steeper curve).
All the best
Rhys
PS If you are asking what Berg Larsen size matches another make which is marked as a 4, then it all depends what make that other piece is, as practically all mouthpiece makers have their own sizing code or conventions. For instance on alto, a Morgan 4 would be 65 thou, a Hawkins 4 is 50 thou as is Wolf Tayne, Yamaha 4 is 63, Rousseau could be 60, 63, or 66 depending on model and Runyon is 66. Dukoff is 65, Bundy 67, Bamber 62, Beechler 70 and Brilhart 74. The chart I have don't show Otto Link or Meyer using the 4 size for alto pieces. All the 4 sizes are at the closed end of the range, so a Berg Larsen of about 60 or 65 would probably be about right.