Shallow or Deep rack for cooling ?

[Makatak]

I have 2 choices of 3u rackcase , one has my amp out the back about 20mm [ shallow ] , the other standard case has about 4 inches from the back of the amp to the ends , my amp is fan cooled 2u and I have a real shallow 1u tuner on top , any probs or bad experiences cooling wise with amps being too far back in the case ? , theres still plenty of space around it but not really open to the atmosphere . The larger case would be handy to leave all the leads plugged in etc . Thanks .

[abarson]

I had a deep Gator fiberglass case for my TubeWorks head, and I think that it stayed cooler than my current snug gig bag. I don't know how much the enclosure's material has to do with it. I left my speaker cables connected inside the enclosure, and only had to grab the power cord. Made life easy.
I liked the Gator, but it had a weird resonant noise that forced me to dump it. As far as I could tell, it was entirely attributed to how the cooling air traveled within the case.

[will33]

Cooling will be fine as long as there's room for airflow around the amps vents. It doesn't actually have to be open to the atmosphere. A rack is also for protection during transport. If the amp is hanging out the back, it isn't really being protected.