Sound Cards are inserted into the expansion slot of the M4000D series instruments. Then you have 200 sounds for immediate access and that can be mixed independently in the playlists you create.
Sound Card 01 is the built-in card for all digital Mellotrons, including the Micro and contains 100 Mellotron sounds.
Not compatible with Mellotron Micro
Sound Card 02 is the first expansion card for the digital Mellotrons and it contains 100 more Mellotron sounds.
Sound Card 03 contains 100 more Chamberlin sounds, for example the rhythms from the Music Master Chamberlins, more lead sounds from the M series Chamberlins and many sounds from the Chamberlin library that weren't used in any instruments!
Sound Card 04 contains 128 sounds from the Optigan, Orchestron, and Chilton Talentmaker.
Sound Card 05 contains 128 sounds of some unreleased gems from the Mellotron library, but also looped versions of the MkI, MkII and a selection of M400 sounds.
All sounds in the Mellotron M4000D, M4000D Mini, M4000D Rack and Mellotron Micro are copyrighted, watermarked and identified.