WOS4: The Wall Of Sounds Vol. 4 - exclusive for E-MU EIV, E4X, E-Synth, E-5000, e-6400, e-64 and EIV-K. 20 banks of ultimative techno stuff plus 3 updated bonus banks taken from WOS 3. WOS4 was especially produced for E-MU EIV and is not compatible to the E-III format (ESI-4000/ESI-32). Most sound banks provide advanced usage of the famous Morpheus Filter by using the modulation and the pitch bend wheel.