breaker tripping

Been messing with the tig welder, a Miller Syncrowave 180SD. Wired thru a disconnect box. Breaker box is 7 feet away. Has a 60 amp breaker. Have an amp sitting on the other side of the welder. It is about 3 feet away, hooked to an Ipod. When using the welder the breaker that the amp is wired to will pop....sporadicly. Hmmmmm