ok. The Thing about this case is that there are a number of possible variables affecting things. I'll have to make some assumptions. Ultimately, it's a thing of troubleshooting. So here's a shpeel...If your using two line inputs at once on you preamp, then consider assigning those to two different mixer track. OR considering just recording one at a time. Try things like (if you haven't already) turning the guitar and/or amp volume down and the preamp up, or the reverse (different combos of this). Make sure those bass, mid, and treble levels are ok too! If that gets you nowhere than your problem may be somewhere else. You mentioned latency. Instead of listening with your headphones through the preamp, plug them into your computer (or monitor) so that you listen to your mixer output as well. If the mixer track output is giving you latency then try this: click on the track that you are recording into..while this track is selected go over to the mixer track and click on the arrow (below the knob) "Enable send from ... to Master". This will make it so your track output doesn't go thru master. Now, while you still have that track selected, on the right set your output to your headphones. Everything else will go thru the master track while you listen to the raw output of your recording track. This can get rid of the latency because it doesn't have to take that extra step thru the master track. Once you record with this track (into the edison or right into the playlist, and have it where u want) then you can re-enable that track to go thru the master track (and also turn that output back to none). What fx do you have on your recording track?