It looks like you're new here. If you want to get involved, click one of these buttons!
We have 2 subs available to use in my covers band but 9 times out of 10 we only use one.
Our subs have stereo inputs and outputs so its not an issue connection wise.
Our PA is powered and very efficient so one is usually enough for the size of venues we play.
It all comes down to the kind of PA you are using and how loud/efficient your PA is. If you feel the low end is lacking then adding another sub would be beneficial.
@robinbowes how could I explain this to my singer in laymans terms? Her argumebt is that by the band (bass drum, bass di'd and my helix) going through front of house effects her vocals...
Bass has frequencies much lower than 120hz. Guitar also does but there really isn't anything useful below 100-80hz which is why a high pass filter is useful, it clears up a lot of the low end rumble a mic'd guitar cab can create, thus making the mix cleaner.
Oh my God, just use two subs all the time! I'm leathered in Tenerife so excuse my bluntness..
C) our singers a headcase so best steer clear.