The O2 Bass, a massive update to the original Osiris Bass, sees critical improvements to enhance the player's experience. By offsetting the body, the top bevel adds comfort and a refreshed look; contours are also utilized in the lower horn and radiused neck heel.

Due to the massive popularity of the multiscale A2 Bass, the Osiris 2 Bass, a reminiscent design, follows suit and is exclusively available in the configuration.