Hi Ben, I tried to respond to your message, but there seems to be a problem: ben(a)glw.com Delay reason: Connection reset by peer: smtp.glw.com [66.222.83.247] This has been repeated a number of times now. To answer you question, when using floating point it doesn't make a difference if all signals are at around -40 dB. The ratios will be the same. Ciao, -- FA Follie! Follie! Delirio vano è questo !