13ASUS Xonar Essence OneFront PanelXonar Essence OneHEADPHONEVOLUMEVOLUMEBIT PERFECT1929688.24844.1176.4_ + _ +MUTEINPUTUSBTOSCOAUPSAMPLINGPOWER1 2 3 4 5 6 7 8991. Power On/OffPress to turn on and again to turn off.2. Upsampling function on/off(1) Press to turn on the upsampling function which increases sample rate to 352.8 or384kHz symmetrically and bit rate to 32bit(2) When the upsampling function is turn on, the LED light of Bit perfect / sample rateindicator will light off.3. Input selectionPress to select among USB, Toslink or Coaxial Inputs. The corresponding LED will light upto show which source has been selected.4. MutePress to mute headphone and speaker output; again to unmute.5. Speaker Volume controlThe Volume Control controls the output level of the balanced XLR and unbalanced RCAanalog outputs.6. Bit perfect / sample rate indicator(1) The relevant LED will light up to indicate the sample rate of your audio source(44.1kHz, 48 kHz, 88.2 kHz, 96 kHz, 176.4 kHz, and 192 kHz)(2) Bit perfect: light on under ASIO model7. Headphone Volume controlThe Volume Control is used to control the output levels of the headphone jacks.8. 1/4” Headphone outputConnect your high-quality headphones/headsets with 6.3mm connector (Please use theattached 6.3mm to 3.5mm connector if your headphones/headsets are of 3.5 mm ports)