I have one of the old PCX amps (PPI PCX280, made the first or second year that DEI owned PPI) . It has served me well. Never gets hot, good crossover network, rated at 80x2@4, benched 95x2@4, etc.
If I were forced to buy all new amps for my setup, I would probably go with DEI because I'm poor and they have a nice price / performance ratio.