24 | EnglishMenu systemOther than Standby mode/When the Dual Zone System is ONDual Zone System SettingSetting the Front channel and Rear channel soundin the Dual Zone System.Display Setting"ZONE2 R" Sub source (Auxiliary input source) is to be rearchannel."ZONE2 F" Sub source (Auxiliary input source) is to be frontchannel.In Audio file sourceSupreme SettingWhen AAC, MP3 or WMA files encoded at a low bitrate (less than 96kbps (fs=44.1k, 48kHz)) are played,this function restores their high frequency regionto approach the sound quality of equivalents ofthese files encoded at a high bit rate. Processing isoptimized for the compression format used (AAC,MP3, or WMA), and adjustment is made for the bitrate used.Display Setting"SPRM ON" Plays sound using the Supreme function."SPRM OFF" Plays the original sound stored in the audio file.⁄• The sound effect may be imperceptible dependingon the relationship between the audio file format andsetting.• This function is not available on iPod.Function of KDC-X591When LX AMP unit connectingAMP ControlYou can control the LX AMP connected to the unit.1 Select AMP Control modePush the Control knob towards up or down.Select the "AMS CTRL" display.2 Enter AMP Control modePress the Control knob for at least 1 second.3 Select the AMP Control item for adjustmentPush the Control knob towards up or down.⁄• For the details on the AMP Control item, see theInstruction manual attached to the LX AMP.4 Adjust the AMP Control itemPush the Control knob towards right or left.5 Exit AMP Control modePress the [MENU] button.⁄• You cannot use the LX AMP operation during standbymode.In FM receptionCRSC (Clean Reception System Circuit)Temporarily have reception alternate from stereo tomono to reduce multi-path noise when listening tothe FM station.Display Setting"CRSC ON" The CRSC is ON."CRSC OFF" The CRSC is OFF.⁄• Strong electrical fields (such as from power lines) maycause unstable sound quality when CRSC is turned ON.In such a situation, turn it OFF.In Standby modeBuilt-in Amp SettingControlling the built-in amplifier.Turning OFF this control enhances the preoutquality.Display Setting"AMP ON" The built-in amplifier activates."AMP OFF" The built-in amplifier deactivates.