Up for sale is my Ampeg SVP Pro Preamp. This preamp is all tube. From the owner's manual: In the world of high performance bass amps, Ampeg’s SVT amplifiers stand alone. Keeping with true Ampeg tradition, the SVP-PRO Bass Preamp offers you more performance and flexibility than any other preamp in its class. Listed below are some of the outstanding features of your new preamp - features which set it apart from the competition! Additional information on these features can be found on the pages indicated. • PAD: A switchable input pad, this feature is perfect for basses with active electronics or very “hot” pickups; • MUTE SWITCH: Allows you to tune your bass in private; • ULTRA LOW, ULTRA HIGH AND BRIGHT SWITCHES: Lets you tailor the sound to suit your tastes “with the touch of a button”; • 5-POSITION MIDRANGE SELECTOR: Five center frequency points are available to get just the right midrange voice; • 9-BAND GRAPHIC EQ: Shapes the sound to your own exacting standards (or use it as a “second channel” for bass solos). An independent level control lets you adjust the Graphic EQ volume. Switchable at front panel or with a footswitch; • TRANSFORMER BALANCED OUT: Electrically isolate your system from the PA or recording mixer to eliminate ground loop hum Here is a pic with the SVP Pro in my rack (I am also selling the Pod XT Pro in another listing if you are interested). I am letting this go for $450 shipped CONUS. Thanks for looking!