I have both a Samsung HT-WP38 and a HT-P38. For the most part these systems work fine for me, with the exception of the passive sub-woofers. I've called Samsung and have been told that there is no way to add a powered sub-woofer to these systems. Does anyone know if there is any way to do this. I would just like to gain some lower frequency that I don't get with the 6.5" passive subs that come with these systems. I know that should've gone a different route in the first place, but these systems fit my needs for the size of my rooms, and wireless rear speakers on the HT-WP38 are just what I needed. I realize that it probably can't be done, but it doesn't hurt to ask.