CLASSÉ DELTA STEREO POWER AMPLIFIER
That louvre-looking window that dominates the front panel of the Delta Stereo Power amplifier is actually the air intake for what Classé calls (and has trademarked) its “ICTunnel”, with the “IC” bit not standing for Integrated Circuit, but for “Intelligent Cooling”, which the company claims “removes heat from the amplifier by pulling cool air through the intake on the front panel.”
“Pulling cool air?” Professor Julius Sumner Miller would be turning in his grave. “The air is being pushed into the amplifier!” he’d be shouting down from the heavens. Which is true.
The Classé Delta combo delivered the depthy richness of the soundfield in a way that was completely gratifying
The low noise fan inside the Classé Delta Stereo power amp is creating a localised low-pressure area within the amplifier which the air inside your room, being at higher pressure, is rushing into the amplifier to fill, in accordance with nature’s abhorrence of a vacuum. Like quite a few manufacturers of high-power amplifiers, Classé has elected to minimise the amount of heat-sinking required (and remove it from being located externally, as it would otherwise have to be) by using a fan to remove the heat from the internal heat-sinking. As for the “intelligent” reference, this simply references the fact that the fan only turns on when required, and only runs as fast as required to remove excess heat. Where is that heat removed to? If you look around the back
