I use a Korg AX100G and like it very much live. I have not used the amp modeling section at all because I can BARELY hear any difference between the combinations for 8" 10" 12" speakers. I am making my evaluation on headphones. Will it sound more significant when run thru PA? Robert Hale "the Duke Of Wail" Coaching By Telephone MailTo:HarmonicaTeacher@xxxxxxx Gilbert, Arizona