I have a 79 fender princeton reverb silverface amp. The speaker is damaged and I don't believe it is the stock speaker. Does anyone know what speaker came in this amp originaly? Or does anyone have a suggestion for a replacement. It is a 10 inch 8 ohm 25 or 35 watt speaker. If I had my choice I'd have something that broke up sooner so I wouldn't have to be so loud. Not speaker break up but tube break up.