It's about time I replace the speaker in my Sunn T50c. Tonally, and for my purposes, a cannabis rex sounds like the perfect fit, but I don't know if I might potentially blow it up. The Sunn is 50w RMS, stock with a celestion GT-75. 98% of the time I'll be using it with an attenuator, with at least 6db of attenuation. I like the idea of a slightly more efficient speaker, but am afraid I might blow out the cone at those occasional louder levels. I see the cannabis rex is also rated at 50w, are they conservatively rated for a bit more wiggle room, or would I be taking a big risk?