The Preeminence One is a passive line stage of the highest quality. It minimizes distortion and discoloration usually associated with preamplifiers This line stage is designed for a simple 2 channel system, so if you like the bells and whistles associated with home theater or you like EQs this is not for you. P1 simply passes information from source to amp - period. But it does so with absolute neutrality. This line stage would be a good match for Tube Amplifiers. SILKY SMOOTH POT. No TVC, No stepped laddered resistors. Extremely Rare to find these Days