Its not my fault you dont know.
"The question has been asked, "What about a sine wave, like for an SPL competitor?" The T15kW has plenty of energy to get through a three-second sine wave burst. However a five-minute "death match" competition is not the T15kW's forte. Who wants to torture their investment like that anyhow?" -
http://www.caraudiomag.com/0606_cae_rockford_fosgate_t15kw_amplifier/index.html
RF is very careful to not give out any exact numbers, apparently. ow long would the bank of caps sustain full output? I dont know, but its apparently somewhere between 3 seconds and 5 minutes, according to CA&E.
RF's amazing new 'hybrid technology' is a bank of caps, a controller to switch between high and mow current operation, and a reliance on the fact that music is transient.