I recently came across a used 4x10 Mesa speaker cabinet with one blown speaker. After I pulled the speaker out I found myself in quite the conundrum as there is no way of identifying what it is. The only marking on it is was a bar code sticker that says 1046 and made in the U.S.A on it. Can anyone help me out or suggest a proper replacement? I'm playing a show with Hate Eternal in about a month and would like to use this particular cabinet. I'd be incredibly thankful for any replacement suggestions or info on the original speaker.