I have to go from a 3.5mm connector (iPhone) to a XLR female What kind of pad would I need to build and which pins of the XLR connector will require resistors??? It has to go from line level to mic level.


http://www.nu9n.com/tpad-calculator.html

Would that make sense

R1 588ohms
R3 588ohms
shunt R2 12ohms

 

Hello,

Do you know the output impedance of the iPhone?
Do you know the input impedance of the microphone input?

Most times the XRL plugs are used for balanced inputs:
http://www.clarkwire.com/PinOutXLRBalanced.htm

A simple attenuator will not make a correct match.

Bertus

 

I don't have all the details It's at my work they bought this mic to Iphone adapter but apparently the mic level is still too hot for the Iphone. So it's not line level to mic but rather mic to mic level. They bought one of those but the one with the +6db pre-amp built in!!!!! http://www.kvconnection.com/SearchResults.asp?Search=iphone+mic&Search.x=0&Search.y=0

I'll try an impedance matching transformer