On Tue, Apr 22, 2003 at 11:19:21AM +0200, Frank Barknecht wrote: > Then the epanorama docs say "Do not do this", because it's > "potentially very dangerous": > http://www.epanorama.net/documents/groundloop/problem_solving.html nice link,thanks! btw, for anyone considering the Radio Shack car audio isolation transformer - based on the specs, I'd say don't bother. Frequency Response:...............300 Hz to 4000 Hz +/- 3 dB http://support.radioshack.com/support_auto/doc9/9542.htm OTOH, the Ebtech Hum Eliminator looks like a contendor... 2 channels of quality audio isolation for about $60 US retail. it is reputed (on rec.audio.pro) to saturate easily at low frequencies, but good enough to be useful. then whirlwind has a gadget tailor-made for the laptop audio crowd... the pcDI - AFAICT it's their Direct2 dual-DI box with an added stereo 1/8" input and a flashier color box. supposedly these are quite nice. but pricier - $115 US or so. -- Paul Winkler http://www.slinkp.com Look! Up in the sky! It's KING TELEVISION! (random hero from isometric.spaceninja.com)
