User manual DENON AVR-550SD

[. . . ] The lightning flash with arrowhead symbol, within an equilateral triangle, is intended to alert the user to the presence of uninsulated "dangerous voltage" within the product's enclosure that may be of sufficient magnitude to constitute a risk of electric shock to persons. We declare under our sole responsibility that this product, to which this declaration relates, is in conformity with the following standards: EN60065, EN55013, EN55020, EN61000-3-2 and EN610003-3. Allow for sufficient heat dispersion when installed on a rack. Se till att det finns möjlighet till god värmeavledning vid montering i ett rack. [. . . ] This switches automatically according to the format of the playback source. When 2-channel signals are input, one of two playback modes can be selected and set according to the 2channel mode setting, Virtual 1 or Virtual 2. (The Virtual 1 mode is set by factory default. ) Virtual 1 : 2-channel sources are played in virtual surround using Dolby Pro Logic II Cinema processing. Virtual 1 : 2-channel sources are played in virtual surround using Dolby Pro Logic processing. This unit is equipped with a high performance DSP (Digital Signal Processor) which uses digital signal processing to synthetically recreate the sound field. One of 6 preset surround modes can be selected according to the program source and the parameters can be adjusted according to the conditions in the listening room to achieve a more realistic, powerful sound. These surround modes can also be used for program sources not recorded in Dolby Surround Pro Logic, Dolby Digital or DTS. In this mode, the signals of the front left channel are output from the left surround channel, the signals of the front right channel are output from the right surround channel, and the same (in-phase) component of the left and right channels is output from the center channel. This mode provides all speaker surround sound, but without directional steering effects, and works with any stereo program source. Select this when watching monaural movies for a greater sense of expansion. Use 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 to emphasize the sense of expansion for music sources recorded in stereo. Signals consisting of the difference component of the input signals (the component that provides the sense of expansion) processed for delay are output from the surround channel. This can be selected if there is no digital input signal, if the digital input is a PCM or Dolby Digital 2-channel signal and if the input is analog. Turn the SURROUND/SELECT control on the main unit or use the 0 and 1 cursor buttons on the remote control unit to select the desired 2channel mode. 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 input signals to both channels. If you have a source component with only one audio output (monophonic camcorder, etc. [. . . ] cause · Power cord not plugged in securely. Symptom Humming noise produced when record is playing. When playing records Howling noise produced when volume is high. If turntable is not equipped with insulators, use audio insulators (commonly available). [. . . ]