La grosse différence entre la 828 c la fréquence de travail, la Traveler pouvant bosser en 192 Khz.
Sinon pour le reste ( à part les 4 entrées COmbo/XLR en plus ), c du kif-kif
Citation : Additional power options
The Traveler can be powered via the FireWire cable connected to your computer, but additional power sources are supported, such as an external battery* for extended recording sessions and for stand-alone mixer operation without a computer. Also, a DC power adapter* can be connected.