I am assuming that AV Receivers, specially the big ones such as the Pioneer Ax5i, Denon 3803 and indeed the Harman AVR 7500, generate a reasonable amount of heat. I am having custom made cabinets built to house my AV equipment and was wondering if anyone had some idea of what kind of space would be required within the cabinet to ventilate the amp. Additionally, would it be wiser to build vents on the top of the cabinet, since the back of the cabinet would be fitted against a wall? This could potentially kill the aesthetics of the furniture. There would be six low lying cabinets next to each other with proposed dimensions of each cabinet in mm: 350 (H) x 750 (W) x 550 (D) Average(ish) receiver dimensions are in mm: 190 (H) x 440 (W) x 520 (D) The above would allow sufficient room around the receiver, assuming that nothing is placed on top of the receiver in this particular cabinet. Would this be sufficient operating space to dissipate the heat? Or perhaps additional ventialtion, i.e. vents on top of the cabinet, may be required? Would appreciate your thoughts.