my friend is selling me this, should I got for it or get dynamat, I wonder if the quiality of this is good
http://www.rockfordfosgate.com/products/product_details.asp?cat_id=5&series_id=43&family_id=90&item_id=62798&locale=en_US&p_status=
http://www.rockfordfosgate.com/products/product_details.asp?cat_id=5&series_id=43&family_id=90&item_id=62798&locale=en_US&p_status=
