Recently got given a pair of old 80's unloaded EV Eliminator W-Bins I want to use for low/upper mid. They measure 110cmx52cmx50cm...any ideas on the maximum power drivers I could put in? They had 100 watt H&H...I was thinking of chucking in Eminence mid bass 400 watters in. Just worried about shredding the cones if there's too much back pressure!