Crunch POWER X incorporates full Class A/B technology in stereo and four channel amplifiers along with Class D in the mono. Class A/B sounds better, but the PC boards require a bit more space that in other circuit topologies. With Crunch POWER X we have trimmed away some of the more esoteric features to deliver a great amplifier that sound like you would expect Crunch to sound.
The POWER X line also includes Crunch technology like QTD (Quick Thermal Dispersion) Technology which puts more aluminum on the heatsink than a normal amplifier. QTD assures the amplifiers make huge power while running very cool with nearly undetectable musical distortions.