VCA6 as a stand alone, dual x-fade. From a description by Juergen Haible. Thanks Juergen. Should I send you a free board when they are ready? Might make you feel better.... http://www.xavax.com/efm/diy-pcb/cam/pics/vca6b-sd.gif Ohhh.... I will add inverting inputs before it's done. -tg