Skip to main content
Submit a Support Ticket
Sign in
Submit a request
Sequential Technical Support
Legacy Products
Tetra FAQ & Technical Support Info
Tetra FAQ & Technical Support Info
Power supply alternative from Radio Shack
Pulse width 0-1 or 98-99 no sound?
Mopho Keyboard banks in Tetra format
Arpeggiator doesn't work in Multi or Combo mode
Voices 2 & 4 are detuned
