23ASUS Xonar U7 User ManualEnglish5.2.2 Volume ControlFunction IntroductionNo. Items Description1. Volume Control bar Master – Adjust the volume level for all channels.Front - Adjust the volume level for the front channel.2. Left/ Right ChannelLockClick to lock the left / right channel to sync L/R channel.3. Mute / Un-mute Click to mute or ummute all channels.4. dB Input Area Key in a dB value in this field to set the volume level.The function allows you to control the volume of the Speaker.12345678910111312123456789101113121234567891011131212345678910111312