My definition of what it is to be an audiophile. I've seen many variations of what this is and this is my take on the subject.
TYPE A
The liking of music is something that I imagine varies quite considerably with audiophiles. In extremis this audiophile will not have much of a liking in music and in the other direction he or she might be described as a 'music lover'. This purest form of audiophile does not like music but is very interested in recordings/DACs/amplifiers/headphones. Their hobby revolves around experimenting with often expensive audio equipment. They are constantly listening to music they have known for years usually with the objective of hearing it more accurately than previous systems. The changes in the way the music sounds (even if it sounds worse because the equipment is more revealing) matters a great deal to this kind of audiophile. There is of course a pitfall related to low quality recordings. This is when accidentally a piece of hifi is not as good as it might be supposed and your low grade recording sounds even worse because of colouration or distortion or something else. For this purist type of audiophile this is unfortunate and can be hard to determine. It is necessary to detect if a poor recording is this way not because of precision but because of some other interference or issue. For this type only real objective increases in sound quality matter. They require a middle ground (not too much or too little) to apply to every sonic element of their equipment. Natural attack, decay and sustain are vital if things are to sound lifelike. Timbre is important and a system should not result in a harsh or metallic one. Does a bell sound like one or is it some thin trebly distorted sound that is recognisable as a bell but not much like one. This audiophile will only want the latter if this is due to the medium the clear and natural bell was recorded on (a 4 track tape in 1970 with treble boost from the mixing desk). They don't want separate instruments to be very lifelike if the process of them being transferred to tape or record makes them sound like an unnatural congested mess. Anything in the DAC or amplifier that expands the soundstage or DSP is to be avoided. All this makes for an absolutely 'boring' unmusical experience and bad recordings may be unlistenable. Well mastered recordings will sound superb however. The distortion this type hears is in the recording from mastering errors, surface noise, tape shadows etc. The aim is unmusical - all the 'fun' (colour, distortion, attack, space etc) is in the recording and not in the equipment. This is a major difference between audiophiles A and B. Some of the hifi equipment on sale does not conform to this type. Only a minority of audiophiles fall into this category.
TYPE B
Another much more common type of audiophile wants the 'fun' in the recording as well as in the audio equipment. I have always found this a little unusual. Audiophiles by definition want high audio quality so why would you add distortion (or 'warmth') or musicality (distortion) or colour (uneven response) ? Herein lies a contradiction of hifi by adding (pleasing) distortion and colour. The answer to this is an idea as old as audio: to effectively change the recording as you please. EQ has come a long way and is now available in sophisticated software and hardware. This sort of audiophile may utilise some form of EQ. This can be significant alterations to the FR with 'shelves' of a few db or more. There are many possibilities and this type of audiophile might spend as much time with EQ/DSP as audiophile A does with hardware. It's enticing being able to boost the midrange or bass/treble or just bass with attenuated treble. Here strangely musical enjoyment is paramount. There won't be many who dislike music, usually they are regular listeners. Any parameter can be adjusted or built into the headphone. More tends to have value to this type than audiophile A. More bass slam, more soundstage, more euphonic sounding is superior to them than less. They're not aiming for a centreline that necessarily makes for a natural sound. Timbre is less important and a steely, metallic one might be a system goal. This type often like valve (tube) amplifiers. Subjective sound quality rather than objective is important to them. Although they may have some neutral components to use as a canvas for their tailoring of sound. If a bell is recorded they want it to sound lifelike even if the recording medium makes this difficult. Their EQ and headphone design can 'enhance' recordings to make them less 'boring', more alive and live. This type of audio enthusiast likes headphones/amplifiers that separate and layer sounds (3D). They dislike 3 blob headphones. They also like quality headphones with (angled) drivers resistant to low frequency distortion. Wealthy ones eschew EQ and have 'flat' upstream components similar to audiophile A, they get their sound from a variety of expensive headphones, each with its own unique signature. Like audiophile A there are pitfalls in their quest for a specific sound. Too many alterations turn what was a curved squiggle into one that is cut by a horizontal line (distortion). By purchasing quality equipment they can forestall this but there are limits. There's always a song that doesn't sound pleasant with a certain EQ/system. It might not sound particularly good on audiophile A's system either but there is something that can be difficult to determine in the audio chain that clashes with a genre/album/song. Poorly mastered material isn't as raw and superbly mastered material will lose something by having the 'fun' x 2. Much of the hifi equipment on sale conforms to this type. The majority of audiophiles fall into this category.
There are many other types of audiophiles and there is nothing wrong with either persuasion. It's obvious which has the greater potential for audio vendors. Another type that I am sure is common are music lovers (TYPE C) who are less (or not) interested in audio equipment or uprating audio quality that aren't audiophiles. All they require is a reliable, easy to use, all in one solution with enough capacity.
TYPE A
The liking of music is something that I imagine varies quite considerably with audiophiles. In extremis this audiophile will not have much of a liking in music and in the other direction he or she might be described as a 'music lover'. This purest form of audiophile does not like music but is very interested in recordings/DACs/amplifiers/headphones. Their hobby revolves around experimenting with often expensive audio equipment. They are constantly listening to music they have known for years usually with the objective of hearing it more accurately than previous systems. The changes in the way the music sounds (even if it sounds worse because the equipment is more revealing) matters a great deal to this kind of audiophile. There is of course a pitfall related to low quality recordings. This is when accidentally a piece of hifi is not as good as it might be supposed and your low grade recording sounds even worse because of colouration or distortion or something else. For this purist type of audiophile this is unfortunate and can be hard to determine. It is necessary to detect if a poor recording is this way not because of precision but because of some other interference or issue. For this type only real objective increases in sound quality matter. They require a middle ground (not too much or too little) to apply to every sonic element of their equipment. Natural attack, decay and sustain are vital if things are to sound lifelike. Timbre is important and a system should not result in a harsh or metallic one. Does a bell sound like one or is it some thin trebly distorted sound that is recognisable as a bell but not much like one. This audiophile will only want the latter if this is due to the medium the clear and natural bell was recorded on (a 4 track tape in 1970 with treble boost from the mixing desk). They don't want separate instruments to be very lifelike if the process of them being transferred to tape or record makes them sound like an unnatural congested mess. Anything in the DAC or amplifier that expands the soundstage or DSP is to be avoided. All this makes for an absolutely 'boring' unmusical experience and bad recordings may be unlistenable. Well mastered recordings will sound superb however. The distortion this type hears is in the recording from mastering errors, surface noise, tape shadows etc. The aim is unmusical - all the 'fun' (colour, distortion, attack, space etc) is in the recording and not in the equipment. This is a major difference between audiophiles A and B. Some of the hifi equipment on sale does not conform to this type. Only a minority of audiophiles fall into this category.
TYPE B
Another much more common type of audiophile wants the 'fun' in the recording as well as in the audio equipment. I have always found this a little unusual. Audiophiles by definition want high audio quality so why would you add distortion (or 'warmth') or musicality (distortion) or colour (uneven response) ? Herein lies a contradiction of hifi by adding (pleasing) distortion and colour. The answer to this is an idea as old as audio: to effectively change the recording as you please. EQ has come a long way and is now available in sophisticated software and hardware. This sort of audiophile may utilise some form of EQ. This can be significant alterations to the FR with 'shelves' of a few db or more. There are many possibilities and this type of audiophile might spend as much time with EQ/DSP as audiophile A does with hardware. It's enticing being able to boost the midrange or bass/treble or just bass with attenuated treble. Here strangely musical enjoyment is paramount. There won't be many who dislike music, usually they are regular listeners. Any parameter can be adjusted or built into the headphone. More tends to have value to this type than audiophile A. More bass slam, more soundstage, more euphonic sounding is superior to them than less. They're not aiming for a centreline that necessarily makes for a natural sound. Timbre is less important and a steely, metallic one might be a system goal. This type often like valve (tube) amplifiers. Subjective sound quality rather than objective is important to them. Although they may have some neutral components to use as a canvas for their tailoring of sound. If a bell is recorded they want it to sound lifelike even if the recording medium makes this difficult. Their EQ and headphone design can 'enhance' recordings to make them less 'boring', more alive and live. This type of audio enthusiast likes headphones/amplifiers that separate and layer sounds (3D). They dislike 3 blob headphones. They also like quality headphones with (angled) drivers resistant to low frequency distortion. Wealthy ones eschew EQ and have 'flat' upstream components similar to audiophile A, they get their sound from a variety of expensive headphones, each with its own unique signature. Like audiophile A there are pitfalls in their quest for a specific sound. Too many alterations turn what was a curved squiggle into one that is cut by a horizontal line (distortion). By purchasing quality equipment they can forestall this but there are limits. There's always a song that doesn't sound pleasant with a certain EQ/system. It might not sound particularly good on audiophile A's system either but there is something that can be difficult to determine in the audio chain that clashes with a genre/album/song. Poorly mastered material isn't as raw and superbly mastered material will lose something by having the 'fun' x 2. Much of the hifi equipment on sale conforms to this type. The majority of audiophiles fall into this category.
There are many other types of audiophiles and there is nothing wrong with either persuasion. It's obvious which has the greater potential for audio vendors. Another type that I am sure is common are music lovers (TYPE C) who are less (or not) interested in audio equipment or uprating audio quality that aren't audiophiles. All they require is a reliable, easy to use, all in one solution with enough capacity.