Well, I'm going to have to hold off on doing a comparison, as a tube blew out on my Trivista (the tubes are soldered in and the unit has to be returned to the US distributor to be replaced; what a PITA!).
The Hagerman HagUSB was easy to install: I just plugged it in and my Apple G4 Powerbook recognized it. The Hagerman HagUSB only converts USB to SPDIF (Unlike the Waveterminal U24, it does not have the ability to be used as a DAC).
I'll reserve comment on Cosecant USB DAC, other than to say its presentation is significantly different from my experience of Trivista (using a CD player as a transport). I'll wait until I can compare the Trivista driven from a computer by USB to say anything else.
Audioengr: I do not know what a s/w driver is.
The Hagerman HagUSB was easy to install: I just plugged it in and my Apple G4 Powerbook recognized it. The Hagerman HagUSB only converts USB to SPDIF (Unlike the Waveterminal U24, it does not have the ability to be used as a DAC).
I'll reserve comment on Cosecant USB DAC, other than to say its presentation is significantly different from my experience of Trivista (using a CD player as a transport). I'll wait until I can compare the Trivista driven from a computer by USB to say anything else.
Audioengr: I do not know what a s/w driver is.