On 6/23/2015 10:54 AM, Chris Adams wrote:
Line-level is line-level. A keyboard will be putting out an unbalanced line-level signal, and a DI box converts that to a balanced mic-level signal (usually XLR) for a soundboard. Since most computers don't have XLR (or other balanced) input, a DI box is not needed or useful.
pro gear is typically +4 dBu, even if its single ended (unbalanced), while consumer stuff is -10dBV. +4 dBu is about 3.5V P-P, while -10dBV is about 0.9V P-P. you're right, I didn't mean that sort of DI box, you just need a level attentuator ("L-pad") to drop the unbalanced pro signal to something a consumer device can cope with (3.5V P-P will likely overdrive the input stage of the computer line input, causing rather nasty distortion).
-- john r pierce, recycling bits in santa cruz _______________________________________________ CentOS mailing list CentOS@xxxxxxxxxx http://lists.centos.org/mailman/listinfo/centos
