Re: (poll) What are the audible differences between dedicated DACs Reply #50 – 2017-03-23 12:22:44 Quote from: Case on 2017-03-23 06:58:39I have to because ajinfla doesn't accept noise floor as a potential issue otherwise. Personally I prefer to use a DAC that is indeed inaudible with the listening levels I use in my listening conditions over a DAC that has audible hissing.all analog systems have a noise floor and with sensitive enough equipment/silent enough surroundings/enough amplification it can be heard.Oh, so now a DAC can be chosen that has inaudible noise levels? Hmmm, that's exactly what I said. You claim no such thing exists due to "thermodynamics".Back to your self test, that I'm not clear how it's measuring the analog headphone output section, what does this line mean?Peak level, dB FS -84.0 -83.9Sorry, I'm a bit dense, so please explain.Quote from: Case on 2017-03-23 06:58:39In an anechoic chamber where surrounding noise level is at -9.4 dBA a DAC would require super high SNR not to have audible hissing with normal listening levels.Wow, you listen in an anechoic chamber? Would you mind sharing some pics and details? Would you admit this might be rather atypical for DAC listeners?Quote from: Case on 2017-03-23 06:58:39ajinfla didn't allow me to choose a DAC based on its noise audibility. I called him dense because he argues that proper DACs make no audible noise under any condition. Nope, not what I said. The uninformed can always create pathological situations of their own doing, then blame the hardware in ignorance. It is entirely possible to have inaudible noise to human ears in an audio system. Unless one is "dense".Quote from: Case on 2017-03-23 06:58:39all analog systems have a noise floor and with sensitive enough equipment/silent enough surroundings/enough amplification it can be heard.Humans have great hearing and can detect very quiet sounds on their own. Forgive me here, I'm a bit dense. Case, please explain how these audibility thresholds you linked were established, given that all analog systems have an audible noise floor. TIA.