Dyno Certified RMS Power Ratings: (Certified Dyno Test / Less than 1 % THD) (Use these ratings when comparing with top brands such as Kicker, Rockford Fosgate, etc). 400 Watts (4 x 90 Watts) at 4 ohms and 1% THD+N. 600 Watts (4 x 150 Watts) at 2 ohms < 1% THD. 600 Watts (2 x 300 Watts) bridged @ 4 Ohms < 1% THD. Peak: (Use these ratings when comparing with the top budget brands such as Boss, Power Acoustik, etc): 2400 Watts (2 x 1200 @ 2 ohms or 1 x 2400 @ 4 Ohms).