Plugged my vintage Thorens turntable into my 2004 Sony Receiver through the AUX input. Without this, there was BARELY any sound. With this, I get better sound, but still need to turn it up a bit. Going from a record to a CD on the stereo requires me to turn the receiver down first. I like the unit, I just wish it had a power switch since I don't play records often and it's always turned on.