On a personal level what I consider Hi Fi is easy to understand. Low fi is almost any sound system that is in an "All In One Format." If your AM, FM radio, Turntable, CD player, 8 track, cassette deck and speakers are all integrated into the same box that's low fi. Low fi is not about maintaining the integrity and fidelity of the sound as the artist had meant it to be heard. Low Fi is all about providing convenience to the listener who has low to no audiophile worthy requirements for their listening pleasure.
For me Hi Fi is anyone who invests the most money they can afford into getting the best quality receivers, integrated amplifiers or true separates possible. If someone is on the quest of creating the best quality sound system that they can afford then for that individual they have achieved the realm of hi fi in their situation. Thus a person with millions to spend on gear will by definition achieve a greater hi fi experience than a poor man like me with no more than 4 thousand 2025 US Dollars to spend or a piece of vintage audio gear at any given outing.
So my definition of what constitutes hi fi depends on what I can afford to spend on the systems and gear I invest in. For me hi fi is not about the price tag it is about the intent and effort of the audiophile in question. Certainly more expensive gear changes the sound experience but buying the best gear one can afford demonstrates audiophile intent or apirations. In my world "True Audiophiles" intentionally invest all efforts and funds they can afford to create the most sophisticated, accurate, curated and authentic sound system possible within their respective means. In my humble opinion all the resulting systems born of audiophile intent are then by definition unique variations of "Hi Fi Systems" curated to appeal to differing but equally discerning tastes.
The simple way of saying everything I shared above is the following. When it comes to what constitutes audiophile quality "Hi Fi" systems I don't believe in any form of gate keeping or gear \ spec based elitism. I think this hobby is a huge tent where all who aspire to unique and awesome audio experiences has their place. I revel in everyone's shared audiophile journey on Audio Karma. I enjoy posts by people whose collections drawf mine in every way. I love seeing how the other half lives gear wise. I stand in awe of someone who can afford and enjoy the differences in quality made by $25,000 separates and $30,000 speakers. I look at someone's $30,000 speakers and instantly become my teenaged self saying WOW in awe and wonder. Enjoying someones audio gear quality at levels I can never hope to achieve does not make me love my Pioneer SX-1980 or Yamaha CR 3020 any less. I love my place on Audio Krama's audiophile gear spectrum and share here from that place of joy in my heart.
I love it when someone shares their Reel to Reel Beast with 10 inch reels and all the bells and whistles. Hi Fi to me personally is all about intent and the joy of sharing your hi fi world with us no matter what gear you have. If it's the best you can do and your gear brings you joy share it here. I for one feel privleged to see it and enjoy it with you. Of course I'm a dumb Old Gray Werewolf but I'M LOVING IT!