Requesting advice re using either the m2Tech or the musiland 1 monitor output from my computer to the metronome and opus.

There apparently is controversy re the voltage output compatibility, and it has been recommended to check for the specific DAC.

The M2Tech has a high output voltage of 2 volts
The Musiland has a low output voltage of .2 volts

Anyone with experience using either or both devices or other suggestions in that price range.

Next question: do I have to change any settings in the metronome or opus to use either device.

Anyone know of other or better usb to spdif converters, is there something maybe just around the corner ?

thanks
Jerry