Along time ago I used to play the g****r and used a small practice at home. When I started playing the bass I once again used the same amp for my practice amp. I get an awesome clean sound and tone from the amp and am considering turning the amp into a pre-amp for my main rig. The amp is only 15 watts, has no external out(s) except for the headphone. I am going to see if that (headphone) will work going into my main head as a pre-amp. If it DOES NOT how could I wire it up to use it as a pre-amp? Would 15 watts be enough to send to my main head? Currently I only turn it up about halfway to get the sound so that would be about 6-7 watts, would that be enough? Any suggestions?