The Encore drum head is an after-market head that is produced in Remos Taiwan facility. The film is similar to that used in Remo American made WeatherKing production however the structure is crimped (Aluminium channel, around a steel insert ring) Versus the WeatherKing which is an open channel poured (Glued) head.
The crimped configuration faitgues at a quicker pace than the poured head. Due to the stresses that the film sees in the production of a crimped head thte great majority of drummers and drum manufacturers agree that the sound of the poured head is significantly superior to that of the crimped head.