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In Reply to: RE: comparing I2S vs. AES3 with Gustard U12+X12 posted by r17 on September 30, 2016 at 04:18:46
Thanks for the reply... I am not an EE, but my understanding is that i2S needs be as short as possible.. Although the HDMI version allows longer lengths than the RJ45 version, it seems from my casual reading that 1M is the maximum length normally suggested.. I have used 1M HDMI i2S OK when I was testing some configurations, but currently use a 0.3M from Wireworld.
Not sure if that is the cause of the roll-off you are experiencing, but it seems the AES would be the better option if you require the 4M cable length..
Follow Ups:
Yes, the I2S cable, both RJ45 and HDMI need to be very short I use a wireworld HDMI cable which is .3meters between my Singzer and Master 7
Alan
Thanks.I also did some casual reading in order to enable others' experience to guide me in assessing whatever behavior the new cables would exhibit.The length considerations reported on by most posters had to do with the I2S struggling with the 1s and 0s when one exceeded a few meters,with resultant dropouts and quirky behavior.If there were only a way to shorten the distance between the digital interface -a U12 and the X12 DAC,but that would mean rearranging the room in such a way that any forward,backward or sidewards motion would be hopscotch or leapfrog,and for the time being,that is not an option.Actually,sound using the AES3 cable is surprisingly good and much more than I could have hoped for from a PC.
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