Hi, my name is Garth. I primarily listen to my stereo setup through Salk Sound Songtowers. However, I would like to use Headphones as a tool to diagnose what is “good” and what is “bad” in my system. Let me explain. I feel that my system has some midrange harshness in it, particularly around...

 I am looking between the NFB-17.32; NFB-1.32 and Reference 5.32. It seems that the main difference is the DAC chip but I'm sure there are more differences to mention. Could someone describe what are the main differences are and if there is an obvious rank order? I currently have them ranked...