swargolet

Heh thanks. I like tinkering with things so I'll probably just bend up some 1/4" aluminium into some nice heatsinks Also you got a PM about your velodyne.

I just purchased the pro-media 4.1 system from a guy that used it for 2 years so it looks like I was on of the lucky few to get an amp that can stand the test of time! But after reading all these comments about the amp failing me being me I just had to open it up and see why. Im not to knowledgeable on electronic components so I dont know whats good components and whats not but what I saw inside was frightening. The 2 zip ties and plastic spacers as seen in this picture http://www.thompdale.com/bash_amplifier/R12-700x525.jpg were melted through and broken! Also the fuse holder and the metal that goes over the mosfets are blackened! I took my amp out of the box after using the system for about 10 min at normal listening volumes and the metal was still very very hot. I also noticed that the mosfets are connected to what I would assume is a heatsink but the heatsink never attaches to the rear panel of the amplifier! To me this seems like a huge design flaw as heatsinks are meant to transfer heat to the fresh cool air around them. Well when the heatsink isnt touching fresh cool outside air because it is stuck inside a box where the heat that is generated can't escape like in these klipsch amps then the heat sinks can no longer do their job. Am I mistaken or shouldnt the heat sinks be connected to the back panel of the amplifier so the heat can transfer to the cool fresh air at the back? What I did for a cheap fix was add a fan on the inside of the box to HOPEFULLY suck in some air from the port and blow fresh air over the heat sinks. I really want to just make new heatsinks that attach to the back panel.