Among the world's most popular external microphone tube preamps, the Tube MP from ART delivers fat warmth and a massive 70 dB of gain through its hand-selected 12AX7a vacuum tube. Ideal for microphones, instruments, and line-level sources, this portable, all-steel preamp delivers the real sound of a pro studio to the masses, providing superior sonic performance to onboard preamps on low-cost mixers and interfaces while maintaining very low noise.