I own a Peavey Mark III 300 watt amp, which powers a Madison 1x15 cab. Whenever I'm playing with my drumming brother, I often have to crank up the volume rather high in which the clip LED lights. Even When I play in my band (The guitarist has one of them small little combo amps) I feel as if I should have to crank it up that much to be able to cut through. Now I'm wondering, is it possible to run my Mark III into a power amp and boost the volume? I've done much searching on this, but to no avail. I've checked the output of the head, and the output gives 23 volts RMS. If attach that to a power amp, would that work or would we have to call the fire department? I'm also wondering -- Does a power amp simply cause the signal to become whatever wattage it gives or would it boost the signal (If I have a 500w power amp, would it take any signal it gets and churn it out into 500w, or would it amplify 500w)?