I agree with both bman and you. I do not think I’d ever listen at that level continuously but dynamics could conceivably hit shockingly high voltages at fairly reasonable levels. Gives new meaning to a heart stopping passage ... although I think you would have to be holding both leads to get the full effect.
I suppose if one is worried about shock then insulated spade connectors make the most sense. Or perhaps insulated banana plugs if they can be secured well..