The Crunch GP 3000D is built like a Hifonics Cyclops. The lower Crunches are entry level amps and rated at max power.
I was doing tests with a Crunch 1500 and 2 of my 12s and was able to do 147+ dB.
Last years Autoteks were good but this years lineup doesnt have the 4400. MB quart amps are similar to the Hifonics Brutus series and more for low to moderate power levels for SQ.
I have been using a Crunch GP3000D in my brothers ride with fantastic results. I am impressed that it is priced as a Crunch but built like a Hifonics.