Thanks to Paul Metcalf for leading me to a document about the dual sample voice cards for the SDS7. The latest SDS7 systems featured voice cards which could carry 2 eproms = 2 sounds. There are several ways to trigger those sounds:
- a dynamic threshold can be programmed. This means that the SDS7 was the first kit featuring velocity stacks (even earlier than SDX had been introduced)
- by a stereo snare pad (snare and rim sound)
