I can't post a sound file because its already in Canada. Each board in a full one off custom like this is made by hand, so they all sound a little different. My toneboards tend to be smooth and don't use a whole lot of air to get the job done.
'If you have to ask' may or may not apply depending on what you're expecting in the back of your mind... for a high end Bison, 150 to 250 depending on the materials and complexity. A regular cow horn with a production board can be as cheap as 50. Hope that gives you an idea.
