Well if it¡¯s ¡°Class C¡± it¡¯s not gonna work for SSB.? The only way to change that is to bring it to at least ¡°Class AB2¡±¡ by reducing the bias and allowing the device more resting current.? That generates a lot more heat (because the devices are conducting more of the time) so the cooling needs to be increased.?? You can make it happen but it¡¯s gonna take some work.