sub with totem staff

Speakers do not have to be monitors to add a sub. You can use any brand of sub. Most subs come with amplification and x overs built in. There are many nice subs besides the Totem that will work fine!

I've used a Rel Storm III sub with Totem Sttaf's and it sounds fantastic.

You will be fine adding a sub. It will be helpful to read up on how to integrate the sub, as there are differing wiring and calibrating methods depending on the sub and your preferences. There also are sealed and vented sub endclosures, which are explained in the better articles. 

In my bedroom system, I use my sub's crossover and it does not call attention to itself at all. The sub just extends the speaker's bottom end. My music sub is a sealed design vs bass reflex. I would be fine (and was for some time) without a sub, but once I got it set up, I enjoy and prefer it.

If you knew all this, please disregard. My intention was to help, not be a know-it-all. I'm a neophyte compared to most on here.

Best,
gary

thanks guys for the info. no I did not know all of that but I did know where to turn for the answers. my electronics: rogue stereo 90 super magnum, BAT vk3-ix with a CD transport and wadia DAC. will i be able to keep the sub on one setting or will i have to readjust for different volumes? thanks