Air space for McIntosh MC-275

I agree with Rgurney that setup sounds fine. Obviously check from time to time for overheating on the shelf above, but ventilation sounds more than adequate. The McIntosh recommendation is probably aimed more at less knowledgable consumers who may be putting their new amp in a closed cabinet.

Thank you all.
Regards.

I have 2 inches clearance. I also have a small Ratshack fan that I use on hot summer days. I've had no problems with this set up.