Duet Firewire Impedance Specs Chris March 02, 2021 22:36 Updated Input (Mic) = 8k Ohm Input (Line) = 8k Ohm Input (HI-Z) = 1M Ohm Main Output = 470 Ohm Headphone Output = 30 Ohm Related articles Does Duet FireWire have balanced outputs? Can I use my Apogee Firewire device through the USB or Thunderbolt ports on my Mac? Duet FireWire User's Guide My hard drive and Duet are both FireWire, but I only have 1 FireWire port on my computer. Can I connect the Duet to the hard drive or a FireWire hub? Is my Apogee device compatible with Windows? Comments 0 comments Article is closed for comments.