You cannot relate Crunch to Autotek. Autotek is top of the line Maxxsonics. Yes Crunch amps aren't great, but have you seen how cheap they are? That's why.
I have an ol skool PG Tantrum 1200. Birth Certificate said 1467rms. I'll include end caps and bass knob (both had to purchase seperate). Great amp at 2 ohms. 250shipped. PM me if interested.