Stacking power amps mono blocks


I have two tube mono blocks that are stackable. However when I put one on the other there is only 1/2" space for heat dissiation between the two of them. I am worried that the lower unit will fry over time if it gets to warm and the heat from the tubes can't escape. I can obviously put a 2" x 4" to create space. However, the look may not be great. Anyone that has figured out a nifty thing or purchased something that creates a nice 3 to 4 " gap between two pretty heavy (at least 50 lbs each) power amps. By the way if I put them into my Target stand (the ampsare 8 " tall (mono blocks) I need to remove one shelf and loose three shelves and not great look for putting in two amps. I am I just not getting it?
dcaudio

Showing 2 responses by dcaudio

Thanks everyone. Seems as I am not the only one struggling with this. Since I do not like the empty shelf in the stand, it look weird with a hole and 8 inch of air. I need to look into one of two options.
1. Move the stereo so I can have one poweramp on each side of the target stand. Preamp on the bottom shelf. Interconnects of 3 ft will work.
2. Buy a stand that can take the ams and maybe has something like a 12 " space between the amp shelves.
Does and amp stand improve the sound? This is too much for me?
Thank you. I am starting to get convinced. Need to run to look for amp-stands for my mono blocks.
Cheers.