How much power cana blue/gold 2x12 cab handle?

[cap217]

I have a z wreck cab with a blue/gold in it. I have a wreck head and an RXES. The wreck is standard 30w 4 el84 (obviously) and the RXES is 4 el84 but rated at 45 watts. I dont plan on cranking the RXES but I dont want to chance blowing it.

If an amp puts out 45w and the cab can handle 30w RMS. How much can you turn up the amp?

[cbass]

Its hard to say but if they are getting 45 clean watts out of 4xel84's they must be some real badasses.
Id treat the same as wreck