"High fidelity” -> being faithful, accuracy in details; “the degree to which an electronic device accurately reproduces sound”
As you can see this definition in my signature, it is safe to say that this is my lodestar based on how I approach this hobby; it is the backbone of my concept of building a headphone rig for myself. I want to hear how the musicians sounded in the recording room/auditorium during recording. If it's not possible, I want to get as close to that sensation as I possibly can, considering my financial limits. This is, in short, why I am strongly against ANY kind of EQ-ing.
Of course, sometimes I like to "indulge" and get some BAAAASS-y fun, that's why I have purchased a JVC DX700 back in the day (successor of the DX1000), but in general I like to stick with my HD800 Classic with a nice DAC and amp and my carefully selected digital audio files. Yep, I'm the child of the digital age, even though I remember my older brothers' turntable and vinyls, I got involved in music well into the cd-era.
Recently, however, due to my never-ending search for better-sounding music, I was suggested to try vinyl as they, in general, sound warmer, less digital, and more analogue, compared to cds and other digital media. This coincided with my effort improving my rig to better serve the HD800 (by now the harsh treble that bothered me before is gone, and I can EVEN listen and ENJOY many of my poorly recorded/mixed/mastered Metal albums!)
I have older friends back in Europe with vast collections of vinyls and gears capable of doing digital rips of those analogue tunes so they appear more and more often in my music collection. They, most of the time, indeed sound much warmer and less digital, which I quite like. And it was a rude awakening to me as I have only heard these same albums in their digital versions before. Here I am spending my hard-earned $ on a nice rig to serve the HD800, hoping to get as close to the music as it'd have sounded live in the studio as possible, just to find out that many of my cd-rips of albums have applied EQ! Maybe it's my profound lacuna of mixing/mastering but I was unaware of it before. Case in point is a US Power Metal classic from 1986. To my best knowledge, the cd came out the same year, with a dedicated mastering to it.
It's an AAD album (Analogue tape recorder used during session recording and subsequent mixing and/or editing; digital tape recorder used during mastering (transcription). Here it is stating it on the cd back cover:
I happened to have now a ripped vinyl version of this same album, namely the (Elektra - P-13426, Japan). For the record:
Needless to say, the two versions will sound startlingly different, the cd having MASSIVE bass applied on it's entire length. I have taken a sample from each albums at the same position, so you can hear it with your own ears (2 wav samples, around 30mb, foobar ABX plugin recommended!):
download them from here: http://www.megafileupload.com/77pv/samples.7z
or here: https://uploadfiles.io/ce78f28
The vinyl just sounds way more natural when directly compared to the cd. Then I ask myself, what is the point of striving for high-fidelity (“the degree to which an electronic device accurately reproduces sound”), if the source itself is far from being faithful to the sound the engineers have heard in the recording studio? Why not just get a pair of bass-heavy 'phones (or use sonar works with the HD800) and call it a day? It might seem nit-picking to some of you, but when you are after high-fidelity, it is quite disheartening to see how far we actually really are of reproducing the sound of live music, let it be classical or Metal. I have just discovered that one of my favourite Judas Priest album's cd version had been treated the same way with bass applied even more profoundly on the cd master, and I'm sure there's more to come.
As I think we are around here to get closer to reproduce live music through headphones as accurately as possible, I thought it was worth bringing some attention to this matter. If I'm approaching this subject from the wrong direction, I'd like to hear other opinions.