Variable input gain and output levels. 15dB pad, phase reverse, and two bands of shelving EQ. Optimized frequency response as requested by users. Updated silver-face cosmetics and enhanced build quality.Custom wound double sized alloy transformers. The item "Universal Audio 2-610 Tube Preamp" is in sale since Monday, February 08, 2016. This item is in the category "Musical Instruments & Gear\Pro Audio Equipment\Preamps & Channel Strips". The seller is "twinhillstudio" and is located in Atlantic Beach, Florida. This item can be shipped to United States.