I have the yamaha 6180 but I have chance to pick up the harmon kardon avr354 at a really good price. not sure what the avr number in the states would be so here is a link to it.http://www.futureshop.ca/catalog/proddetail.asp?logon=&langid=EN&sku_id=0665000FS10100639&catid= so which is the better of the two?