if you don't hear any difference between an apple tv and your music server, then you need to work on your music server.
some of the reasons are:
* apple tv is only good for 16/44 files
* you are not running pure music or amarra on the server
if you stream music from a server that is running these 2 products, you have to turn off the program to send the data remotely to an apple tv (i think it is still this way). i'm not saying that you will get bad sound from an apple tv because you can take the signal and put in a jitter device and an external dac behind the apple tv and it will be better than without, but it will not be as good as what the server can produce. the other alternative is to get a used mac mini and connect that to the music server. this doesn't have the 16/44 limitation and pure music will allow sending the pure music read data to the external mac mini.
some of the reasons are:
* apple tv is only good for 16/44 files
* you are not running pure music or amarra on the server
if you stream music from a server that is running these 2 products, you have to turn off the program to send the data remotely to an apple tv (i think it is still this way). i'm not saying that you will get bad sound from an apple tv because you can take the signal and put in a jitter device and an external dac behind the apple tv and it will be better than without, but it will not be as good as what the server can produce. the other alternative is to get a used mac mini and connect that to the music server. this doesn't have the 16/44 limitation and pure music will allow sending the pure music read data to the external mac mini.