All of the crunch GP series amps do what they are rated at the 3000d is the only one I believe rated RMS. For all the haters ask Eric Alexander who used 4 of the 3000d's to beat Tommy McKinney's drive by record by over 3.5db's on a badly draining electrical system. I also believe that Eric's Livewire teammate Gene did over a 150 on the TL with the gp1600.1