@djones51 As I'm intending it for the purposes of conversation, a "tweak" is something supplemental to the system, something which is not necessary to make it work.
For example, a speaker cable is not a tweak. A fancy speaker cable is. Etc.
An external DAC -- I see how that could be a grey area, if there's already another one in the system. So, for example, when I added an external DAC and bypassed the cheap DAC in my cheap CD player, and it made a big difference (that I could hear), that's an example of a "tweak that works."
I just purchased some good stands for my speakers. They are made of solid steel, very rugged and are replacing some cheap MDF stands my wife picked up at a Good Will for $10. Does this tweak make a difference? Well, visually, they're much more attractive, so in that sense, "yes." Do they make a sonic difference? I have to spend time listening back and forth to decide.
For example, a speaker cable is not a tweak. A fancy speaker cable is. Etc.
An external DAC -- I see how that could be a grey area, if there's already another one in the system. So, for example, when I added an external DAC and bypassed the cheap DAC in my cheap CD player, and it made a big difference (that I could hear), that's an example of a "tweak that works."
I just purchased some good stands for my speakers. They are made of solid steel, very rugged and are replacing some cheap MDF stands my wife picked up at a Good Will for $10. Does this tweak make a difference? Well, visually, they're much more attractive, so in that sense, "yes." Do they make a sonic difference? I have to spend time listening back and forth to decide.