In one form, a compressor system includes a compressor, and an annular ring disposed downstream of the compressor and structured to reduce pressure fluctuations in the pressurized air discharged by the compressor. The annular ring may include an internal passage for conducting the pressurized air. The annular ring may include at least one resonator in fluid communication with the internal passage. Further embodiments, forms, features, aspects, benefits, and advantages of the present application will become apparent from the description and figures provided herewith.