The Rogue Audio Ares II Tube Phono Preamplifier is an ultra-high performance, low noise tube phono preamplifier for low, medium, and high output mc and mm cartridges.The Rogue Audio Ares II Tube Phono Preamplifier is an ultra-high performance, low noise tube phono preamplifier for low, medium, and high output mc and mm cartridges.