The Abyss 52X regulator combined with the 52X first stage means the best for a high-caliber set up! The double DFC system provides a consistent airflow. Added to an NCC system and more metal on the Abyss' cover, it achieves very high performance in cold water!
Double DFC ports
Cold water use
VAD - Vortex Assisted Design
The air bypass tube delivers air to the mouthpiece creating a swirling vortex with a low pressure area in the center that keeps the diaphragm down during inhalation, for very sensitive and easy breathing at all depths.