First after selecting something like chunk you'll notice 1 or morer of the three FX lightsd will light. The tone can be modified from there by either selecting or deselcting the FX buttons. I know one of settings does have a lot of echo until you de-selct the lit FX button. Other than that, I've had this for months and still cannot figure out how to get to any artist presets or down load any. I've hooked it up to my pc and checked out the interface but I find it very confusing. There are literally no directions or good videos anywhere telling you how to do these things. Also the website on the amp card for artists ( line6.com/spider-artists ) does NOT take you to artist presets. It's a sales overview for the amp , even when you click presets or resources. I've seen a ton of similar complaintsd where people are confused how to use this amp. LIne 6 really needs to know this and provide much better resources.