Citation Stereo Receiver Surround Mode Definitions, Operating the Citation, Movie Modes

Operating the Citation 5.0

Selecting Surround Modes

When you select a source to watch or listen to, the last Surround mode used with that source will automatically be chosen. You may change the Surround mode at any time in several ways. One way is to press the buttons on the remote control; press the Dolby Mode Selectors button  for Dolby Pro Logic, which is always available. If you are using a source for which Dolby Digital is an appro- priate choice, a second press of the same button will switch to that mode of operation. Pressing the

6-Axis,Stereo or Party Pre-programmed Mode Selectors selects these modes, whose settings are listed starting on page 51 of this manual. Another way to change the Surround mode is to press either the Cust 1, Cust 2 or Cust 3 Custom Mode Selectors Æ on the remote control. These but- tons are factory preset to Surround mode profile settings which have been found most pleasing to typical users. A typical Surround mode profile includes the mode type, such as 70mm, or Jazz, high- and low-frequency equalization settings, adjustments for surround and center speaker levels, amount of time the signal is delayed before being sent to the surround speakers (an important aspect of derived surround sound decoding), and the setting for Panorama, a special feature that can be set to expand the width of program material in three user-selectable steps.

Note: The 5.0 will only allow appropriate choices of Surround mode; it will, as example, ignore any “requests” for the Dolby Digital or DTS modes when the chosen program source cannot or is not providing the appropriate signal.

Surround Mode Definitions

Movie Modes

Dolby Pro Logic is the consumer version of the system used in theaters to separate two channels of sound from a movie sound track into separate left, center, right and surround channels. In this mode, the surround channel is mono, and limited in bandwidth. Pro Logic is a good starting point when you are choosing a Surround mode to use when listening to a movie or a surround-encoded broadcast or video game.

70mm is a Jim Fosgate design exclusive to Citation, based on Dolby Pro Logic. To increase the excitement level of surround-encoded materials, the 70mm mode uses Citation's ultra fast decoding logic and extended bandwidth in the surround channels. In this mode the back (surround) channels are capable of response up to 12kHz, rather than the lower limit of 7kHz mandated for Pro Logic circuits by Dolby Laboratories. Although even higher bandwidth is possible in the surround chan- nels, 12kHz was chosen to preserve spectral balance in your listening room (A higher frequency range for the surrounds is not advisable as the listener is typically located closer to the speakers at home than they would be in a mover theater.) Finally, there is some controlled blending of the left/right front-channel information into the left and right back channels. This delivers an increased sense of spaciousness from most sound tracks.

The 70mm mode is excellent for use with any recording or broadcast that contains matrix-sound encoding.

6-Axis, described fully in the “Music Modes” section which follows, is an excellent surround mode for movies, as well.

52