Sound Control designs and manufactures Sonata Intake and Exhaust Silencers for use on Gas Turbines. Since every Turbine System is typically unique, the Exhaust Gas stack silencing can pose special design and manufacturing challenges. A Sonata Gas Turbine Exhaust noise is considered broad band, but has a significant low frequency contribution. Silencer designs tend to be a combination of absorptive and re-active configurations. Special provisions for thermal growth are essential and material selection critical.