The best way to get shipping quotes is to put an item in the shopping cart and begin the checkout process. It will ask you for your address and use that to calculate shipping by several methods and shippers. It doesn't ask for payment information until after it has calculated shipping costs, so this is a good way to check prices.
We also have a freight forwarder available. When you enter a non-USA address, the Bongo freight forwarder banner appears, allowing you to create an account. When you get to the checkout phase, click the Bongo banner, and create an account. They will provide a USA address, which you will then use in the Pi Speakers cart, by clicking "change address" and entering the Bongo-supplied address. This will then start a freight price recalculation in the shipping cart, and your prices will be much lower.