Aether – The ancients considered it the fifth element after fire, water, air and earth. Denafrips so name their new upscale masterclock with fixed/adjustable 75Ω BNC outputs for 44.1/48kHz, 11.28/12.28MHz, 22.57/24.57MHz and 45.15/49.15MMz integer clock multiples of the audio/video base frequencies. That differs from the 10MHz standard adopted elsewhere.
