Nautilus XL SEThe Nautilus XL SE stands as a counter point to our flagship The Red October XL SE Audio Tubed Integrated Amplifier. The Nautilus XL SE is the second major evolution of our most beloved amplifier, built on years of refinement and hard work. The Rev 2 marked a turning point, bringing together our advances in power supply design with improved ergonomics. It was a watershed product we thought would stand as the high point for years to come. The XL SE