Hello gnc1775 I agree with DLstephenson as Im using two bagend 18 infrasubs in stereo to augment or support my mirage om6s 18htz. response. What ive done is purchase 2 plinius sa 102s in dual mono xlr, and using Pliniuses m8 preamps two sets of rca [+ 1 set xlrs for 102s] outs for my bagends high pass so I can enjoy a full seemless bass response all the wayyyy down to 8 htz. Although this is inaudible supposedly. I also have a mirage bps 400 for my .1 low frequency effects from my ht processor- now my setup is relativly simple as in hometheatre mode all three subs are working courtesy of my pliniuses m8 preamps hometheatre bypass, setting front speakers through my ht.processor to full range: actually all five speakers are set to full range; but all the info. is allowed through in processing mode while in two channel mode I retain the integrity of the bagends response as the Plinius m8 takes over 2 channel duties, the mirage bps 400 really slams for HT. but I prefer the seemless blend in two channel from bagends; response is very much like rel subs, clean and very well integrated as well as fast the only time I know theyre there is if I unplug them,big ambient spatial cues as they seem to help provide soundstage proportions as well as low end response. Im not sure if the slam factor is what your looking for in a bagend;[more depth than slam] personally my plinius 102s picked up my transient midbass response from my om6s so well that on any up closemiked drums theyll startle you; also very detailed drums; as now Im simply using bagends to keep system from bottoming out to great effect as well as recreate kick drums or pipe organs and accoustic bass ect....As for your counterpoint Ive only seen one, used at audio consultants but it looked substantial in size not sure of power rating on that model but your speakers should give you midbass response as Von S. are really great speakers, sounds like perhaps the tubes in your counterpoint might be softening up your bass attack a little. If your looking for more drive and attack consider velodyne, m&k, and hsu although I saw a smaller bagend "new sealed in box" for I believe 600-800 dollars on the gone. My experience though is "one" will provide more depth not necessarily more slam, for that add a second bagend. I dont know if this helps but the bagend is one of the best musical subs Ive heard and Ive heard a good many.As to your hookup if you have one pair of rca outs that should suffice in a basic setup going streight into sub from your preamp and theyres a good many cable splitters and sub cable configurations on the market that should help resolve that dillema.Regards Tim W.