XxMangoxX said: on some cheap microphone
This is not really good, most condensor mics are extremely sensitive and you will damage or break the capacitor if you place them in front of an extremely loud instrument like a distorted guitar amp or kick drum. That's why I suggest the SM57 or any other middle-of-the-road dynamic microphone. These can handle the high volumes of your amp without the risk of being damaged, and are affordable to replace if you do some how damage one.
In general condensors are used for middle volume acoustic instruments like a voice or acoustic guitar, not for high output instruments like guitar or drums.
It's probably how you have the amp's tone circuit set, adjust the tone so that it sounds a little muddier then you would normally set the amp, try to get the tone you want at as soft a volume as possible. And if you can use two mics, place one directly on the amps speaker cone at a slight angle, set the other a few feet back from the amp. Record both mics on two seperate tracks, play your whole guitar part through, then eq each track seperately after they've been recorded so that they sound less harsh.
Now if possible set the amp up for a slightly warmer tone with a little less dirt and record the exact same guitar part again. Now you should have 4 rhythm guitar tracks, pan them at different points in the stereo spectrum, usually the most distorted tracks about midway out to the right and left, and the cleaner tracks further out, or you can mix them up in different combinations. Just experiment.
Also, try adding a little reverb and running the guitar track(s) through a low-pass and hi-pass filter so that you can set a cut off for any unwanted hi or low frequencies.
What did you use to record, software or tape? If you used software then the above should be pretty easy to accomplish and you'll get a much fuller and better guitar sound.
