This is the first guitar speaker I ever toasted. 80 watt shiva into a 65 watt speaker. Master volume at about 11:00. I'm bummed. For all you shiva users out there, the h75 scumback works really well. It's warm,almost as tight as the cl80 that came stock, and also adds a nice vintage vibe. Works great clean or dirty! JUST USE MORE THAN ONE SPEAKER!