Originally Posted by knights
just by connecting the HP-out of the DAP to the Amp, the hp-out itself will behave like true LO because of the high gain nature of the amp input... am i correct?
(HP-out of the DAP will just give enough current to send stereo signal to the amp)
so basically every DAP is worth amping the hp-out? is that what you're tryin to say?
When I post, I generally choose my words reasonably carefully so that they convey what I am trying to say. Because of that, attempts to amplify my statements beyond what I have said, or to generalize my statements beyond what I have said is to say something different than I am trying to say. I'll give the overall response to your questions, and then I'll take a look at what I posted and your summary of it and show the differences. No, your summary of what I posted is not what I was trying to say. I'll bring out what I said, and was trying to say, below:
Here are a few good examples of where the summary above does not convey what I was saying:
(quote from knights)
"just by connecting the HP-out of the DAP to the Amp, the hp-out itself will behave like true LO..."
In one place in my post I wrote, "I think that the reason why amping the headphone out is generally NOT detrimental is because of the relatively high impedance of the amp's input, which causes the amp inside the portable unit's headphone out to NOT push much current - causing the headphone out to behave like a line out (just providing the voltage vs time traces for the stereo audio)."
A little later in the post, I clarify a little more what I meant by that, "(with the headphone out acting more like a line out than it would with a pair of headphones attached)"
So, I would say the following about your summary:
I did not use the phrase "true line out", and I qualified what I meant by "causing the headphone out to behave like a line out" by writing, "the headhone out acting more like a line out than it would with a pair of headphones attached". By that, was I trying to say "true LO"? No.
(knights goes on to ask):
"so basically every DAP is worth amping the hp-out? is that what you're tryin to say?"
My entire post describes a finite set of headphone outs that I've actually amped with a finite set of amps using a finite set of phones - all listed in the post. Then I summarize my observations over that set of trials. I then give some things that "I think" are happening so that, generally (not always), amping a headphone out would not be detrimental (nothing said about it being worth amping - assessments of worth must be made by the person paying to try it). I wrap up those thoughts with my own summary: "But these are just thoughts behind the experiences that I have had with a variety of units over the last five to six years." By making this statement I specify that these thoughts are my attempt to provide a framework for the observations that I myself have made. I don't generalize them to a set of headphone outs that I have not tried. I think that "every DAP is worth amping the hp-out" is not a accurate summary of what I was posting. Was I trying to say that? No.
I hope that clarifies for you, and others who may have similar questions, what I was trying to say in my previous post.
Thank you for asking,