5511 DSP SURROUND SIMULATION• The AVR-2803/983 is equipped with a high performance DSP (Digital Signal Processor) which uses digital signal processing to syntheticallyrecreate the sound field. One of seven preset surround modes can be selected according to the program source and the parameters can beadjusted according to the conditions in the listening room to achieve a more realistic, powerful sound. These surround modes can also be usedfor program sources not recorded in Dolby Surround Pro Logic, Dolby Digital or DTS.Surround modes and their features12347ROCK ARENAJAZZ CLUBMONO MOVIE(NOTE 1)VIDEO GAME5CH/7CH STEREOUse this mode to achieve the feeling of a live concert in an arena with reflected sounds coming from all directions.This mode creates the sound field of a live house with a low ceiling and hard walls. This mode gives jazz a very vivid realism.Select this when watching monaural movies for a greater sense of expansion.Use this to enjoy video game sources.The front left channel signals are output to the surround and surround back signal left channels, the front right channel signals areoutput to the surround and surround back signal right channels, and the in-phase component of the left and right channels is outputto the center channel. Use this mode to enjoy stereo sound.56MATRIXVIRTUALSelect this to emphasize the sense of expansion for music sources recorded in stereo. Signals consisting of the differencecomponent of the input signals (the component that provides the sense of expansion) processed for delay are output from thesurround channel.Select this mode to enjoy a virtual sound field, produced from the front 2-channel speakers.Depending on the program source being played, the effect may not be very noticeable.In this case, try other surround modes, without worrying about their names, to create a sound field suited to your tastes.NOTE 1: When playing sources recorded in monaural, the sound will be one-sided if signals are only input to one channel (left or right), so inputsignals to both channels. If you have a source component with only one audio output (monophonic camcorder, etc.) obtain a “Y” adaptorcable to split the mono output to two outputs, and connect to the L and R inputs.Personal Memory PlusThis set is equipped with a personal memorize function that automatically memorizes the surround modes and input modes selected for theinput different sources. When the input source is switched, the modes set for that source last time it was used are automatically recalled.The surround parameters, tone control settings and playback level balance for the different output channels are memorized for eachsurround mode.