i need to know what type of system 5.1 or 9.1 whats the difference how many watts ,Wall Mount ,Bookshelf or ,Floorstanding
and is this a good system http://www.amazon.com/Acoustic-Audio-AA5102-Channel-Surround/dp/B00A6THUHQ/ref=cm_cr_pr_product_top
and is this a good system http://www.amazon.com/Acoustic-Audio-AA5102-Channel-Surround/dp/B00A6THUHQ/ref=cm_cr_pr_product_top