Musereo Mono to Stereo Converter is a simple, easy-to-use software that converts multiple mono mp3/wma/wav files to stereo in just a few clicks, helping you to breathe new life into your audio files mono and dull.
You can fine-tune the stereo width, harmonic richness, as well as level balance and panning. It is specially optimized for earphone/headphone junkies.