subwoofer advice


I would like to incorporate two or more subwoofers into my stereo setup using one or two powered subs (to be purchased) and a pair of Satterberg passive subwoofers that I already own.  My thought was to use a splitter to connect both my speakers and a powered sub to the speaker out of the amplifier (mc2505). 

Is it then possible to connect the passive subs to the powered subs in such a way that they are being powered by the active sub amplifier, rather than the main stereo amplifier?

If so, is it a good idea, and what features do I need to look for in purchasing the powered sub(s).

Any help/suggestions would be most appreciated. 


snapsnap
you need something like this to connect the amp to the sub via the speaker terminals.  Some subs have these build in. some do not. 
https://www.crutchfield.com/S-LrFPSJ7FonT/p_543ADP12/Russound-ADP-1-2-Speaker-level-to-Line-level-Ad...

I don't think you can drive a passive sub through the amp from the active sub but not sure.  I'd just get two SVS or Rythmik sub and be done with it.
Good luck , fun project!