The Cool Note process has been hailed as the greatest advancement for brass instruments in the last 50 years. By treating the instrument at sub-zero temperatures, inherent stresses within the structure of the brass called "residual stresses" are released. Brass instruments respond to this gentle process providing increased tonal quality, volume, and lower or higher register. By treating the instrument at sub-zero temperatures, inherent stresses within the structure of the brass called "residual stresses" are released. This allows your instrument to play and sound the way it was designed to perform.  Instruments are also reported as being easier to clean.

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