Salcon Prologic Preamp for Subwoofer Centre Surround (TL074)

About this item: Output: Subwoofer Centre Surround (Left-Right) Channel: 4 Ch Input Supply: 15v to 30v DC Dual Supply Type: Prologic Feature: Built-in Adjustable Subwoofer Gain Preset, Low Pass Filter (35Hz to 300Hz) Item Dimensions: 10.1L x 5.5W x 1.5H cm Components: 2xTL074 Use: Home Audio Easy to install