https://joy.videvo.net/videvo_files/video/free/2014-12/large_watermarked/Vintage_Audio_Board_Adjusting_the_Monitor_preview.mp4 Vintage Audio Board Adjusting the Monitor (Close) A close-up shot of the Monitor Knob on an old audio board in a TV Studio 1080padjustmentaudioboardequipmentknobmonitoroldproductionprofessionalstudiotvvintage