As a side note, even a 3, or 4 ms difference wouldn't be noticeable. But then... I know we're all perfectionists, then a sub-1ms is the ideal, if zero is not achievable.
Just to justify my statement:
sound travels at roughly 500m/s (it's less than that, but for math it helps rounding it up), so that a 1ms delay would be equal to listening at the two sources (the on in-time, and the one-delayed) asnif they were playing at the very same time, but being, say, one at 2 meters from you, and the other at 3 meters.
Now... in a multiroom scenario, I do not see (well, I should have said "hear"...) something like 3m- and 6m-away listening spot could make a bad listening experience, starting from the point that multiroom IS NOT critical listening...\
this is just to assure you, that even a 10ms difference would - in most cases, if not all - pass unnoticed.
Just to justify my statement:
sound travels at roughly 500m/s (it's less than that, but for math it helps rounding it up), so that a 1ms delay would be equal to listening at the two sources (the on in-time, and the one-delayed) asnif they were playing at the very same time, but being, say, one at 2 meters from you, and the other at 3 meters.
Now... in a multiroom scenario, I do not see (well, I should have said "hear"...) something like 3m- and 6m-away listening spot could make a bad listening experience, starting from the point that multiroom IS NOT critical listening...\
this is just to assure you, that even a 10ms difference would - in most cases, if not all - pass unnoticed.
