Gearslutz.com - View Single Post - How: adapting a line level signal for mic level input

brianroth · 14th June 2006

If going from a balanced +4 dBu to a typical mic preamp balanced input, all you need is a pad. My good friend Rick Chinn wrote this paper describing the design, and at the bottom of the page are the values for a 40 dB pad that properly matches impedances (bridging on the line source, around 150 Ohms to the mic preamp's input):

http://www.uneeda-audio.com/pads/

Bri

14th June 2006	#7
brianroth Lives for gear Joined: May 2005 Location: Oklahoma City Posts: 1,818	If going from a balanced +4 dBu to a typical mic preamp balanced input, all you need is a pad. My good friend Rick Chinn wrote this paper describing the design, and at the bottom of the page are the values for a 40 dB pad that properly matches impedances (bridging on the line source, around 150 Ohms to the mic preamp's input): http://www.uneeda-audio.com/pads/ Bri __________________ Brian Roth Technical Services Oklahoma City, OK www.BrianRoth.com