I know this has been talked about before but I can't really find a definitave answer. Anyone know how the converters stack up against dedicated converters like apogee and mytek? I know the clock jitter specs are much better in the mytek compared to the focusrite. I am currently running the 428 through the converters in a tascam fw1884. Would the 428 converters be much of an upgrade from the tascams or should I fork out the money and get something like the myteks? Thanks.