I currently have 4 Jensen P10R speakers ( 25 watts each, 8 ohms ) in my Super Reverb. I am considering replacing one of the Jensen's with an EVM 10M speaker ( 300 watts, 8 ohms ). Is there a potential problem with running a 300 watt speaker with three 25 watt speakers in the same cab? If they are all 8 ohms, it should be safe, correct? note- I use my Super Reverb for recording purposes and will only mic the EV speaker once installed.