Community/SoapBox

I could care less about “green” or the man-made global warming hoax that goes with it.

Because they are dedicated players, HD DVD players use about 1/10th the power of the least expensive Blu-ray player (the Playstation 3).

While the threat of global warming can be debated, vehemently dismissing environmentally friendly ideas is absurdly selfish.

in addition to Nuvo, check out On-Q’s whole house audio system with class d amplification.

Mr. Castle left out Class H amplifiers as an alternative to the traditional energy-wasting topologies (A and AB).  Class H uses an intelligent power supply and multiple power rails.  Like the transmission in a car, it shifts power rails depending on the signal demand.  With Class H, you get the great sound of a Class AB amplifier (the signal remains analog) without the excess heat and wasted energy.

To my knowledge, AudioControl is the only company that consistently uses a Class H topology in their amplifiers (both home theater and whole-house audio).