Hi. i am looking for a quality audio mono preamplifier schematic, I prefer with a cheap IC. I would like to amplify the output signal from an audio console. the output of this preamplifier will be connected with an limiter/compressor. any schematic? thank you in advance

 

You can use a TL081. Read the Ebook for how to calculate resistor values for your gain - http://www.allaboutcircuits.com/vol_3/chpt_8/5.html

 

Rather than trying to design your own, you might prefer to use one of Rod Elliott's projects.

His project index starts here: http://sound.westhost.com/projects.htm
Preamplifier project page: http://sound.westhost.com/projects-2.htm

At the very least, you will get a bunch of good information about preamplifiers.