The Beovox P50 speaker has two woofers, one nearer the center and one nearer the edge. I have a pair of P50s both showing the same behavior: the woofer near the edge seems stiffer than the one near the center. I mean when I push on the cone with my fingertips it doesn't really move much. The woofer nearer the center moves in and out freely. Also, it seems like less sound may be coming out of the outer woofer, although it does vibrate along with the other one. Is this normal? Maybe the outer woofer is a passive element? Or am I looking at a dead woofer that needs to be replaced?