Οι διαφορες ειναι,
ONE:
63 dB of gain,
A/D and D/A conversion @ 44.1/48kHz, 24-bit,
Line-level, 1/8” stereo output for headphones or unbalanced powered monitors,
USB
DUET:
75 dB of gain,
A/D and D/A conversion @ 44.1/96kHz, 24-bit,
One high-level stereo headphone output,
Two unbalanced -10 dBV line outputs for powered speakers,
FireWire 400