For audio shops in Ottawa, check here:
http://www.ncf.ca/~dw413/rw_aulst.htm
I go to Audiotronic (beside Future Shop), Bleeker, Dewar's, Audioshop as well as the one at Clyde/Baseline corner and the one at other side of Merivale across from Bleeker regularly. You can find most popular audio products (Denon, Marantz, Harman Kardon, NAD, Yamaha, Onkyo, Linn, B&W, PSB, Mirage, ...)