1) Set your amp for the JC CLEAN channel, adjust the bass, middle, and treble controls like I have suggested for the Fender amp, and add in a little bit of reverb.

2) Yes we need to hear the 1st fret of the high E string with the chord. Please check out Chapter 5 of the Fundamentals 2 Course:

https://www.guitartricks.com/course.php?input=fundamentals2

This chapter will give you strategies to work on making these barre chords sound clean.

Hope this helps - let me know how it goes!!

Mike