- Jan 23, 2020
A rule like that would be good to remember, but I'm not sure I understand that, as there are probably a few ways to interpret what you said there. Are you saying re SINAD that say 114dB DAC combined with 60dB JBL 308 will result in 113.5dB SINAD? Or thinking about it more deeply I think you're saying that as long as the DAC is 70dB or above when combined with a 60dB JBL 308 that overall SINAD can only range from 59.5dB to 60dB? Thereby diminishing returns setting in if your upstream device is any greater than having 10dB better SINAD than your downstream device. EDIT: Yep, I got it after thinking about it, you're saying in practical terms that you certainly don't need better than 10dB better SINAD in your upstream device, as overall SINAD is limited by the worst performing link in the chain and as long as the upstream device has 10dB or better SINAD than the downstream device then it won't do anything to make SINAD worse (worst case 0.5dB worse).Simple rule to remember is: if your upstream device has 10 dB better performance, the effect on lowering the downstream device is 0.5 dB or negligible.
So to clarify for others reading:
114dB DAC with 60dB downstream device = 60dB overall SINAD
70dB DAC with 60dB downstream device = 59.5dB overall SINAD
(can't get better than the weakest link in the chain)
Ah, I'm talking about the non-HD version so it's this one:A minidsp 2x4 HD has a SINAD in the neighborhood of 86 to 90db depending on who is measuring it. It hasn't been measured here with the latest instruments and methods.