I have a question, my receiver is onkyo DX SV424, and i have a pair of infinity entra three speakers hooked up to it. I play my music from my laptop, so i understand that its not the best quality music possible. But, when I play mp3 files, the bass sounds like its too much and i have to play around witht he low freq. part of the equalizer in winamp or windows media player to produce a normal sound. But when I play cds, it sounds perfect with a straight line on the equalizer. Does anyone know why different file formats produce different sound on my computer? I don think it used to sound like that on different sound systems..