|
This could get long and messy.
Speaking from experience rather than learning (so I stand open to correction), sub-bass is once you start to drift below 60hz, ish. It's definitely audible though. Anything below around 25-30Hz I can't hear, myself, but you can feel it.
Generally speaking, unless you have a true full-range monitoring environment and a well-balanced room (e.g. a mastering studio) you don't have a hope of doing anything remotely useful below 35hz, ish. And that's with some relatively big (say 8" - big for a home project studio) nearfield cones. So it's good practice to roll it off, on the grounds that most people will never hear it and you certainly can't, so how do you even know if it's correct?
In addition, low frequencies, to become audible, require a lot more energy, which means headroom. If you've got weird shit flapping around in the sub-sub bass region it can save you precious dBs and get your track just that (apparently) louder. Assuming you know how to capitalise on it.
Now, the thing is, the likelihood is that you actually don't have speakers that can do much useful below 50Hz (e.g. the those £200ish Alesis ones), but the problem is some really good stuff happens down there - I think of the region between 30 and 50hz as the "warmth" region. Hack that out and your music will lack real depth on a system capable of it (like a club systeam) and also lack that "trouser-flapping bass" effect so loved by the likes of the Edison Factor 
In this case, I'd probably start rolling off around 35hzish and then just hope and pray the sub is half-decent. Then take it somewhere with a decent monitoring environment where you can check it.
*breathes*
___________________
Sly One
www.djslyone.co.uk
Resident :: www.planetangel.net
Coming soon...
Sly One: 'House Of Muzik' [Six:Thirty Records] - February 2007
Sly One vs Jurrane: 'Time Bomb' [Flux Delux Records] - Release date TBA
|