16 EnThe unit has dual built-in subwoofers; however you can connect an external subwooferwhen you want to enhance low frequency sound. Connect a subwoofer to theSUBWOOFER OUT jack of the unit.NOTE• Use an external subwoofer with built-in amplifier.You can change the dynamic range to make sounds easy to hear at a low volume.1 Turn off the unit.2 Hold down the key for the desired mode for more than 5 seconds.The unit turns on with the selected setting.Three settings are available (see below).You can confirm the setting status by the lights of the indicator, when the unit is turnedon.NOTE• Normal is set as default.Using an external subwooferMono inputPin cable for subwoofer(commercially available)Unit (rear)Overhead viewMaking sound easy to listen at low volumeSetting Description IndicatorNormal Automatically adjusts the dynamic rangebased on the volume level of the source.Lights up in greenStandard Compresses the dynamic range to suit aliving room environment, etc.Lights up in orangeMaximum Does not compress the dynamic range.Lights up in redReturns to NormalSets to StandardSets to Maximum