The volume is unbelievable for the size. Unfortunately, I have lots of problems with feedback when it's used with harp. Doug In a message dated 9/1/10 8:55:20 AM, yodennis@xxxxxxxxxxx writes: > Is such volume possible in such a small package? > http://www.ztamplifiers.com/products/ > http://www.myspace.com/blowintheblues ; >