Shipping of any audio gear to and from Canada has to involve brokerage and taxes, unfortunately. As for duty, goods made in North America benefit from the NAFTA exemption, others are charged about 7%.
The best way to simplify the process is to use the mails or to ship by air. Brokerage and the rest get complicated when you choose ground.
With FedEx ground (for example), you need to fill in several forms, one of which appoints the carrier's broker if you have no other. You may need an item class ID number for duty assessment and these are hard to look up, no online database is available. You may need to register as an exporter. The overall total charge is unknown until delivery or after. The shipper may well be billed even though the receiver was declared liable.
If I am taking a ground shipment I get it clear with the seller that I accept responsibility for any and all charges involved with selling and shipping to me, and I pay them as promised. However the whole business is a lot easier if the goods are shipped by air or by post.
Finally, given unhappy experience with insurance claims, I think it wise to insure with a third party like dsiinsurance.com