Yeah, that's why I'm wondering why people use the 442 with the 744t if they only need a 2 channel preamp for channel 3 and 4. Maybe they are doing 6 channel recording? But for 4 channel recording it seems more logical to use a cheaper 2 channel preamp/mixer like the V3 or MixPre with the 744t. Unless the preamp in the 442 is an upgrade from the one ones in 744t. Hope someone here who use this combo can put some light in my confusion.