Pure Class-A is ideal as it does not have crossover distortions associated with Class-B or Class-D amps. The resulting organic, responsive sound is undisputedly the best.
However, Class-A amp makers face two challenges: power supply stress and heat dissipation. Following the traditional linear power supply approach, the resulting Class-A amp is inevitably heavy due to its transformer and heat-fin size and lacking driving power.
Class-AB outputs the first few watts in Class-A and the rest in Class-B. Because it is more efficient, it can output more driving power. Still, the more watts it outputs in Class-A, the lower the distortion, the better it sounds.
The Timekeeper GT is a Class-AB amp. Using our proprietary Max Current Power Supper (MCPS) and innovative cooling, it outputs significantly more wattage in Class-A than our competition while looking sexy in any living space.