DSIEI
Signia (formerly known as Siemens) Prisma 2 Pro DSP, Prisma...
DASS2
Signia (formerly known as Siemens) Swing S2, Music P audio...
DASS3
Signia (formerly known as Siemens) Swing S3 & Prisma 2SP+...
DSIEO
DSIEO - Signia (formerly known as Siemens) Reflex M audio...