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I might just make that part of the A/B or A/B/C comparison.The most common type of digital audio connection is coaxial digital. Maybe my misguided opinion but now that you mention it I think I have a optical splitter somewhere around here. I believe this would also apply to an optical splitter similar to the one you suggest. The Vault2i ALSO has an optical OUT but like many others I believe the sound quality is not up to the coaxial. That was my thought going the y-splitter rout. It may not work, but it won't hurt anything either (just don't use cables over 15 meters, and even that won't hurt but you may not get a signal).Ĭan you use optical for the test? There are S/PDIF optical splitters for a few $ (Monoprice has one).
So, you might get away with a Y-splitter that you suggested, but I would get a cheapo - the reflection issue will overwhelm any advantage of fancy copper for your tests. At the frequencies of SPDIF (about 3 MHz), the wavelength in cable is roughly 70 meters - the reflected phase will be nearly the same as the outgoing phase for 1 meter cable back at the source (meaning no problem).
If you don't match impedances you will have a reflection problem (like light reflecting air to water, but less dramatic). A cable type splitter is best (but the one above won't pass SPDIF signals - the low end starts at 5 MHz).
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