Hi. I just purchased a used SVT-CL. I have not received it. I have impedance questions that were not clearly answered( for me ) in the sticky or any of the threads that I could find. I believe the person I purchased this from may have been running it through an 8 ohm cab. I have no idea for how long or to what extent. Is this bad if the impedance switch was at 4 ohm? Could he have damaged it considerably? He listed it as very good condition. Also, my current rig is an Aggie DB750 into 2 DB212’s. An 8 ohm and a 4. I know the 750 can handle this fine but I've never owned a full tube head. Will the SVT be ok with 2.67 ohms? Thanks.