I apologize for being stubborn for sake of my point. But risk what? In music listening what real risk is there for actually using a dac and amp of a sinad of 80 db? What are these circumstances (in music)? I know the provable transparency is over 110 db. But what are we actually so worried about in regards to SINAD with lower values.It's because DAC is just one component in the chain.
If you chain 2 devices with 120dB SINAD, the chain will have SINAD somewhere between 117dB and 114dB. And so on.
DAC and, to a lower extent, amp, is where there is NO good reason to waste quality. Because highest quality is available and, in relative terms, cheap.
Also, a good figure is a guarantee that you won't "hear" the device (or the chain) EVER.
With, say, 80dB, you don't know, since that will depend of a number of factors, details, circumstances, that you don't control or have knowledge of.
And why to take that risk if you can, for the same money, purchase a device that you can prove, for sure, and under any circumstances, won't impact your sound in any way?
It would be helpful if people posted samples of music files sampled from DACs with 80db vs dacs with 110 db. Even include the amps in there too amps with 80 db and 110 db to see what effect the chain really has on the sound. That way we could see for ourselves what we think of the difference in sound or the risk of it sounding different. In other words, let's see the point of all the practical result of increasing performance.