I've got my 5e3 plugged into the Aracom. The Aracom is set to load. No speaker is hooked up. When I strum the guitar I hear noise coming from the head. It's a very faint buzzy amplified sound of the guitar that gets louder when I turn up the amp volume and quieter when I down the amp volume. Is this normal? I usually have the line out running to the Torpedo CAB or the DAW and headphones on so I've never noticed this before now.