Microphone Preamp using Opamp

[FatMike]

Hi,

I just bought I new sound card, which has 2 mic inputs ans 6 line inputs. As there are only 2 mic inputs I also want to use the line ins for recording. So what I need is a 6 channel mic preamp that boosts the microphone signal to line level. The sound card's line in has an impedance of 12 kOhm.

Does anyone have a simple schematic for that purpose (a single mic preamp schematic)?


Thank you,


Fat Mike

[12afael]

I have a layla studio card and I need more preamps too
I learn a lot on the www.groupdiy.com forum

on texas instruments and analog devices you can find dedicate chips for mic preamps

check
the ssm2142
ina103, ina106,drv134
and a lot more

there on the net you can find the green preamp check it