Duty on recievers is 6% of the purchase cost and then you have to add 15% tax, so just take whatever the cost is in the U.S. Change it to C$ and then add the 6% for your sub-total and then add the 15% to that for your Total. BUT if you went with etronics.com for eg. A reciever that is $398.88 US is $491.82 is Canadian funds, then you add $66.23 for standard shipping to Southern Ontario, then add $29.51 for duty, then add the $88.13 for tax and you have a $675.69 total to your door in Canadian funds.