Review on Enhance Your Audio Experience with the Stereo LINE PRE-Amplifier: Boost Sound Quality by 15DB at 12VDC by April Anson

This preamp is just right for our use as it takes a line level signal from our home audio and sends it to our graphics card over a 100 foot 16ga cable. He is quiet and humble. The supplied adapter provides the 12V DC power supply required by the preamplifier. The potentiometer controls the level of power coming down the line, and the signal at that distance is strong enough that we still have some headroom. We cannot detect any noise introduced into the line. So yes, this is a great little box, perfect for our application.