It's true that frequencies can be
felt, outside of the normal approximate hearing range of someone very young and in perfect health, which is 20hz-20khz. For most people however, it's very hard to actually hear all of this supposed range of human hearing.
Bass is very easy to feel through solid objects, but it's hard to feel it through the air, much lower than around 20hz. 27hz is very easy to hear and feel, it's a very deep vibration, like an earthquake or similar rumble. Sonic weapons exist, some aimed to make buildings crumble, but the brown note is full of it, it doesn't exist. If it was true, I would have made a bit of a mess when I was testing my 18" subwoofer, all the way down to the supposed brown note subsonic frequencies. A painter from across the road, and two houses east, did come over and asked me if I could turn it down, because he was sanding the walls, and he said I was causing the dust to go everywhere
A record player can produce clear bass, decent midrange, and a mediocre high frequency response, so the resulting sound output basically has a much stronger bottom end compared to it's top end, so it really does sound like there's more bass there. A -3db 27hz signal from a vinyl record will sound just as clear and deep as a -3db 27hz signal from a cd, even a 128kbit mp3 sounds excellent at that low of a frequency! Low quality mp3 suffers at mid to high frequencies, not bass.
And generating sound from bouncing a needle on grooved vinyl, is a very inaccurate and noisy method, especially at high frequencies, causing ultra sonic frequencies to be generated, which can possibly be felt through your bones slightly, if your sound system is good enough... (and not heard through the ears, except for some types of small animals) which is a big reason why vinyl is a less accurate recording medium. If you like this resulting sound however, then who cares what's more or less realistic.
And lets not pretend that downloading copyrighted material isn't stealing boy and girls
I'm sure if any one of you made a movie or an album, and you saw someone holding a recordable disc, with the name of your product scribbled on top, you wouldn't be happy about it! Would you ask them if that's just a backup of their legally purchased item? Would you follow them home, and report their address as a pirated copy manufacturing site? You could say you'd be happy about it, but no-one will believe you