I am planning to build a modest HT/audio system using Yamaha rxv650 a/v receiver, Polk Monitor 40 bookshelf speakers on 24" stands as my main speakers and above mentioned subwoofer (to begin with - I plan to add additional speakers later...) together with 26" LCD HDTV monitor and PS DVD player. The Monitor speakers and sub are their latest/current 2004 models.
While reviewing speaker specs I was surprised to learn, that the Polk's subwoofer is not magnetically shielded... I know that magnetic pollution should not be an issue at all with LCD and plasma monitors, but how about the rest of the equipment???
Also, my room is quite large - what are the symptoms of sub too small for any given space?
speaker FR = 47Hz - 25 kHz
sub FR = 35Hz - 200Hz, dynamic power output 100 watts, power output (CAO) 50 watts...
Thanks for any 'input'

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