There are 2 hifi shops selling used items. You could check them out.
One is at Ampang Park the other at Kepong.

Sorry but I don't know why people keep pointing to Hi-Way Laser. My only experience there was not good. 1st they are not that friendly as if you don't have money or they look at you and thinking here's another time waster. Their price also expensive. Simply say they quote my NAD C515BEE about 400 more expensive than A&L at Amcorp. A little bit different is ok but not too much la. Well that's my personal experience la. Maybe some of you guys differ from mine. So you can push your luck. For me I'm not going back there even if they are the only one got something that I want.