I've developed a little audio board that softens the hard stereo separation of the Amiga audio. It does this by mixing the low frequencies from each channel with the audio from the other channel. This leaves the stereo image mostly unaffected but at the same time it makes the audio more balanced when playing on big speakers or headphones.
This is of course not to everyone's taste but I've had some great feedback from musicians, DJs, producers and people from the demo scene. You can listen for yourself (and make your own mind up) as I've put some samples on my blog to listen to, which you can find at
www.edsa.uk/bassmx.