Thats it! With these settings you can adjust the treble, bass and volume (gain control actually) to taste and you'll be in Fender heaven! The only thing missing is the Fender power amp and open back cabinet with Jensen Alnico speakers for the perfect Fender clean but that would really mess up the Marshally sounding lead channels. Volume maxed and use the gain for adjusting volume There isn't any type of bass boost in a Fender pwr amp so set the XTC to Tight which is OFF. This gives you the absolute best and complete mix of the pre and power amp.Įxcursion setting. Set the volume on the XTC to max and now your Gain control becomes your volume. On a Fender there is NO master volume just a volume. Most people know this but its worth repeating. Its as if its not there and take it out of the circuit. Assign the presence B to the green channel and turn it completely off or down.thats it. Presence control or lack there of on a Fender is easy on the XTC. You will not hear the difference between 20pf's. 100pf is a lot closer to 120pf than 220pf so obviously you want to choose either B1 or N for the Fender tone. On the XTC you have 3 choices B1=100pf, N=OFF, B2=220pf. The bright switch on a Fender is a 120pf which boost the extreme highs, the higher the value the more you start boosting the mids. For what its worth a Twin Reverb does have a mid control and its a 10k Audio pot.Īnother component to the coveted Fender clean tone is the bright switch. So where is 6.8k on the mid pot you say? I took a reading on the mid pot and the magic setting of 6.8k is around 10 o'clock on the XTC's mid control. So you have no control over the mids, its stuck on 6.8k. The XTC clean uses a 25k linear mid pot and the Fenders use a FIXED setting of 6.8k for the mids, no pot just a 6.8k resistor. If anyone has played a good Fender blackface like a Super Reverb or Deluxe Reverb you know that the normal channel does not have a mid and presence control and the XTC has both mid and presences. The XTC's clean preamp is a Fender Super Reverb/Deluxe Reverb clone. I have the XTC schematic so I was able to follow along. Today I got my multimeter out, pulled the chassis on the XTC and went to work.

I've dissected the blue and red channels down to each grid, plate and cathode but never took the time to look into the green channel. I've been displeased with the XTC clean channel and just endured it for the most part all of these years. Quoted from the bogner amp forum regarding the clean channel:

Bogner xtc footswitch schematic