Usb 2.0 digital i/o system 8 + 8 + 2 channels analog / adat / spdif interface 24 bit / 192 khz digital audio 36 x 18 matrix router 2 x midi i/o stand-alone operation midi remote control (92 pages)
Usb 2.0 / firewire 400 digital i/o system 12 + 16 + 2 channels analog / adat / aes interface 24 bit / 192 khz digital audio 60 x 30 matrix router 2 x midi i/o full stand-alone operation midi remote control (110 pages)
Usb 2.0 digital i/o system 22 channels analog / adat / spdif interface 24 bit / 192 khz digital audio 20 x 12 matrix router midi i/o midi remote control stand-alone operation class compliant operation (94 pages)