The present invention relates to alpha-amylase variants having mutations corresponding to one or more of the following mutations A181E,D,Q,N,V; I201W,F,L; Q264R,D,K,E; Y290R,E,K; and S334A,V,T,L,I,D. The article may include an outercover, a liner and an absorbent assembly front portion disposed intermediate the outercover and the liner in the front region. \u201d Audio signals received outside of the cone can be filtered out. The rigid side wall has an interior surface bounding a progressively constricting flow channel that communicates with the compartment of the storage structure. A valve assembly can be disposed adjacent the venting orifice.