This Firestone MASS Preamp was used in my system for 4 years.  It is a passive preamp without bass and treble controls.  It allows the switching of two analog sources and comes with the remote.  It is extremely quiet and musical without any coloration to the signal.  It is more of a "purist" device aimed at the 2 channel purist.  I have purchased a new preamp and no longer need it's services.  I used it as the front end for a Hafler XL280 amplifier and it was a match made in audiophile heaven.  If you are looking for a remote volume control that doesn't process your signal, then this is for you.  It is just as happy working with your living room system as it is on the desktop.  Very versatile little unit.  Bid with confidence as this was in a non-smoker home with no kids or pets.  It looks like it just came out of the box.  I will cap shipping fees to $10 in the lower 48.