At its core, the Pioneer Elite SC27 AV receiver was designed to deliver bestinclass sound quality for fullscale immersion into today's new highdefinition multichannel home theaters. Incorporating Pioneer's exclusive Direct Energy HD amplifier with ICEpower ClassD technology, the SC27 was designed to bring new levels of clarity, detail, and dynamic "quick response" to new uncompressed Dolby TrueHD and DTSHD Master soundtracks now emerging on the BluRay Disc format. This revolutionary amplifier design also provides incredible power output with minimal energy loss from wasted energy in the form of heat, making the SC27 one of the first truly green home theater av receivers available today.