It means that the amp should be used at 1/3 the rated watts for best results. So it can supply 1/3 the power continuously and the rest is just for short bursts when needed.
Originally Posted By: grampi
Got me, I was hoping someone else would know...I've never seen that term used before...
Originally Posted By: Quattro Pete
What the heck is that? How does that compare to RMS?
Specifications: •Rated power output: 497 watts into 8 ohms, 950 watts into 4 ohms with 0.92% THD (based on one-third power duty cycle)