The SST Sound EXpander stabilizes the sound center. This is the most important point of all and the real difference between old legendary saxophone models and today's models. The sound center is essential for depth of sound, warmth, liveliness, carrying power and presence of the musician in the room and in the band.
The Sound EXpander is indispensable, especially for today's saxophone models and all makes. The improvements made by the SST Sound EXpander are relevant for all styles of music.

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