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Can I get some opinions on my opinions

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It also depends on the listener's ability to hear compression artifacts. I've intentionally avoided trying to train myself to hear them... If I'm not noticing them now, I don't want to start hearing defects or to start trying to hear defects!
Hearing those artifacts in a 320k file requires intimate familiarity with a state of art recording that features something like castanets or timbales or such. Anyone that claims they hear it right away in every comparison is utterly full of it.

It is also an utterly unrewarding exercise. Stands in the way of enjoyment for zero valid reason other than archiving knowing that the recording is 100% preserved.
 
Check by ABX if the listener does not prefer mp3 256 (or even 128) to HRez 768...
 
the effect of the room itself has on sound is much more complicated and expensive to resolve, than finding a good set of speakers.
IMHO they go hand in hand walking on the same side of the street....
 
if I have 25db of background noise, and I'm listening at 85db that means I can only appreciate a ~60db dynamic range. So devices with 100db+ dynamic range aren't even close to possibly being fully utilized in any realistic listening setting. That is assuming the track itself uses 60db of dynamic range, which is not common for popular music?
if my system adds anything with "no signal" above the ambient with nothing powered up.....then sumting wong...that needs investigating. I am not well versed in the dB scales as relates to room level signals and noise and how to determine the dynamic range available.
 
if my system adds anything with "no signal" above the ambient with nothing powered up.....then sumting wong...that needs investigating. I am not well versed in the dB scales as relates to room level signals and noise and how to determine the dynamic range available.
25 dB would be a very quiet room. 85 dB is pretty loud. That is a 60 dB range. 60 dB is also way beyond most recordings, and pretty much what the best a vinyl rigs could achieve back in the day.
 
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