Roll-Off units. Does it really works?

[Dede2002]

Get yourself in the sweet spot,or as close as possible and don't use any roll-off. That's the best way.

How are you? 
Well, that`s good advice for sure. But most of the times the sweet spot ticket/seat/table is already taken.
So is always good to know how to improvise.

[echo1434]

Just my .2c: I would recommend not using any bass roll off and just do it in post....what if the bass roll off goes overboard and takes out too much bass.

Totally agree. Using roll-off usually destroys the low frequencies around 20-30 Hz, as the roll-off curve gets pretty steep by that point.

And true, you never really know how much bass you're going to be up against at a given concert. There are just too many variables.

Ok, not everyone is skilled in post-production or likes to invest the time in it... But isn't that what the EQ control on a stereo is for? 

[nameloc01]

That's why the most important factor is location, and effort needs to be spent getting good seats. And "effort" means a few different things.

[Dede2002]

That's why the most important factor is location, and effort needs to be spent getting good seats. And "effort" means a few different things.

Nameloc, one more time, I agree 100%. 
I was in a prime location in that particular concert (the bass was overwhelming anyway)
That´s why I'm always the first in line to get the best tickets.
But you can't always get what you want ( sing along, please)