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The backbore sizes compliment the cup designs and further assist in the refinement and "fine-tuning" of the sound. Consideration has been given even to the placement of the backbore into the receiver (amount of gap). The Warburton system allows the player the opportunity to personally "balance" their equipment.
Note the size of the mouthpiece currently used and consult the Approximate Comparison Charts below to find the Warburton mouthpiece diameter that is the closest to the diameter of the present mouthpiece. This is a good place to start unless there is difficulty with the diameter size of the present mouthpiece (i.e. too large? or too small?). After choosing a comfortable diameter, try one diameter size up and down to confirm the diameter selection.
Select an intermediate size backbore (6 or 7). Note that at this point this backbore is for test purposes and is to be used to settle in on diameter and cup shape. Other backbores will be tested later to balance the sound.
Play various cup models of the chosen diameter according to performance needs and desired sound:
|Desired Sound||Try these cups|
|Studio lead||ESV, ES, S, SV, or M|
|Piccolo sound||S, SV, or M|
|Brass quintet||M, MC, or MD|
|Orchestral||MC, MD, D, or XD
Repeat the same musical passage, such as a scale, and compare the changes in timbre and settle in on which sounds the best. Remember, compare sound, not technique.
Using the cup selected, try a tighter backbore (one with a lower number), then one that is more open (one with a higher number). There will be a noticeable difference in the way it blows as well as in the way it sounds. This will give you a good idea of which direction to move to find a backbore that will suit your needs. While the Star (*) series backbores may feel more free blowing, depending on the player, these backbores may not focus as well as the standard series. This will be a personal choice.
Once a combination has been selected, go back and confirm the cup selection and then play the original mouthpiece as a comparison. You and your listener will hear a difference and you will feel a difference.
Remember that different styles of music may require different equipment to achieve the appropriate sound for the job. So, change equipment to get the optimum sound, not the method of playing.
Check out the Warburton Music website for more in depth information, measurements, etc...