reducing one instrument's volume

My band recently played on the local college radio station and they provided us with a single wave track recording (nice of them, yes). However, the bass guitar is much too loud and I was wondering if there is a good way to reduce the volume of one instrument possibly using the equalizer? I can’t seem to figure it out, so any help would be appreciated…

It’s not possible to unmix a signal. That’s like trying to cut open a cake and get your eggs back intact.

You can try EQing it, but I have a feeling the results will not be very good. By all means, though, have a go at it.

that’s what i feared… thanks anyway though…