As noted above Mach 5 is based out of Winnipeg and their prices include shipping for the most part. They seem to be very popular in the DIY circles. Also look at CSS ( creative sound solutions) based out of BC. They have some really nice subs and some of the odds and ends you may want to complete your product. CSS also has their own section in the DIY speaker forums here at the SHack if you haven't checked them out already.:T Both of these are Canadian companies so you can support local business and don't forget that the Bash plate amps are designed and built in Canada if you decide you want to go witha plate amp.:hsd: