I bought an amplifi 150 very recently and I was very excited to plug it in and have a go. I downloaded the app and started to adjust the controls to find a clean setting. It was to great disappointment after adjusting the controls for two hours that I could not find a clean sound that didn’t have a small amount of crunch behind the sound the entire time. So is there anyone else out there with the same issue and can someone please give me some guidance or advice on how to get an extremely clean tone without any overdrive crunch or effects???