If I may interrupt the current conversation, for which I can offer no contributions...
I recently ordered this aluminum heat sink on which to rest my DACport LX while using it.
Without using any type of fan, the heat sink alone has greatly reduced the felt temperature of the DACport LX case. It's no longer as warm to touch.
If you want your DACport LX to last a few years longer before the capacitors dry out from getting cooked, rest it on this heat sink during use - it makes a huge difference in running temperature.
Just make sure to position your cables so that the full length of the DACport LX (or DACport) is in contact with a couple of fins along the middle of the heat sink. I say this because when I first put my DACport LX on the heat sink, the cables had it was tipped high at one end and low at the other - preventing heat exchange. When I positioned the cables so that the full length of the DACport LX was making good contact with the heat sink fins, the temperature of the case quickly fell across perhaps 5 minutes while still listening to music - and it stays cool thereafter, of course.
Hey Mike I wanted to thank you once again for recommending that heatsink. My LX was giving me some issues recently where I couldn't get it to power on. I was able to revive it by opening it up and moving things around a bit and the put it back together. It's working fine now and the heatsink makes it run cool to the touch, opposed to molten lava. I really think this will extend the life of the unit and I highly recommend the heatsink guys. I'm gonna run my unit into the ground, it's served me well and has been with me the longest out of any of my gear :).
Thanks once again Mike,