hey I have an alembic f1x and a beringher ep1500 power amp and the last couple of times I plugged it in its sound overdriven. it I let a note ring out it sounds like I have a overdrive pedal on. Last time I practice it did this for 10 minutes. I had a gig tonight and it did nothing and then I went to practice a couple of minutes ago and it started sounding overdriven again. anyone have any ideas?
Put the volume on your poweramp ALL THE WAY UP. Control your volume with the volume on your preamp. This will give you maximum headroom.
Well, you have to think about what changed between the gig and practice. If nothing has changed in terms of set-up or settings, I'd check the wall voltage. It can vary wildly and may be affecting the performance of the amplifier. Does the pre sound good through a mixer or a different amp? Methodical troubleshooting where you eliminate a single variable at a time is the key.