#1
Well i have a situation that i need help.

my amp is making very loud sound wave when i play 2nd note right after first one. if i just play 1 note then it sound fine. It only made sound wave on some particular fret.

It like the 2 string touching each other and make wear sound wave rigging sound.

I dont think it come from the guitar because it was fine when i use my guitar with cube 30x. Another thing is that i already brought the guitar shop and get a set up and they said it fine
Bedroom Set up:

ESP LTD EC-400 with 81/60 EMG
Yamaha SJ550HR, 1980's Strat (rare guitar)
Crate v18
Digitech Bad Monkey
Vintage 30 Speaker
Metal Muff

Saving up for ESP Uruha's Signature Guitar
#2
no one can help me with this?
Bedroom Set up:

ESP LTD EC-400 with 81/60 EMG
Yamaha SJ550HR, 1980's Strat (rare guitar)
Crate v18
Digitech Bad Monkey
Vintage 30 Speaker
Metal Muff

Saving up for ESP Uruha's Signature Guitar