Marantz Cinema 40 9.4 Channel 8K Ultra HD Home Theater Receiver with Dolby

Power and processing:9-channel amplifier125 watts per channel into 8 ohms (20-20,000 Hz) at 0.05% THD, with 2 channels drivenMarantz's Hyper Dynamic Amplifier Modules (HDAM) offer exquisite detail and dynamic range while reducing noiseDolby®, DTS®, and Auro-3D® surround sound decodingDolby Atmos® and DTS:X processing for use with in-ceiling or "height" speakers for more enveloping home theater soundDolby Atmos Height Virtualization and DTS Virtual:X create three-dimensional effects without height speakersIMAX® Enhanced reproduces the full dynamic range of specially encoded IMAX soundtracks from compatible sourcesAudyssey speaker calibration and system optimization includes:MultEQ XT32 auto setup and room calibration delivers balanced, dynamic sound with enhanced surround performanceDynamic Volume anticipates loud sounds to keep volume levels evenDynamic EQ improves dialogue, bass response, and surround channel levels at lower volumesSub EQ HT provides individual calibration for four su