On Tue, 28 Nov 2006 17:36:27 +0100 "Marc-Olivier Barre" <mobarre@xxxxxxxxx> wrote: > I also ran into some problem with my laptop. Those things are known to emit > a lot of EM waves which easily get caught by cables transmitting asymmetric > signals. When I switched all my connections between my sound card (RME) and > my pre-amp (TL-Audio) to symmetric XLR, the hum disappeared. I had a hum problem with a Tascam US-122. I wanted to record a singer and guitar that had an integrated pickup. The singer's mic was a condenser and so needed phantom power so I had phantom power on, but I also had the guitar pickup plugged into the other channel. If I turned phantom power off the hum went away. I haven't had the problem with balanaced line either and in the end we just went for a second mic on the guitar which avoided the hum. Steve.
