Good morning people hope all is well with everyone. I just purchased (2) Acoustic Research powered subs that has an 8" driver AND a Passive Radiator. Have been told that because of this design the 8" sub can extend a little deeper than it would otherwise w/o the passive radiator. Is this true? A former co-worker has this sub and it does seem to play quite low for only being an 8" sub. It is also kinda punchy sounding which I prefer as opposed to being too boomy. Anyways, just wanted to see if any of you guys knew so I could understand sub woofer design a little better. Feel free to chime in people. Have a great day.