The clean channel is not clean. it sounds like the drive channel is spilling over. All tubes are new, and all channels are strong. I have done various test and it shows that the speaker is fine. the amp is clean. only the preamp is running dirty. I took it to a so called electronic guy but he is not a amp tech, and does not know much about tone. I live in the boonies down in Costa Rica please help. what should be looking for.

Music - Fender - Hot Rod Deluxe Guitar Combo Amplifier