crank the gain to about 7-8,crank the bass to around 5, mids at about 4, and roll the treble down so it's not real buzzy and harsh but keep enough so that it cuts...also on the bass keep it low enough so that it doesn't get muddy.
I just want to say this...you have been asking all kinds of questions about amps and puckups to get an offspring sound...trust me when I tell you this...you will be much happier with your own sound!
ohh totally its just my band is covering self esteem and gone away tommorow so i better figure things out... thanks to you though for being so helpful... I have my own sound but yeah it is a bit offspring-esque