The OriginAL beautifully shapes the bass players clean signal whilst offering a foot-switchable valve powered overdrive in a single compact unit. Crystal clear cleans and powerful overdriven growl, The OriginAL encompasses it all. The Valve overdrive circuit fitted into the Original pre amplifier duplicates the kind of overdrive you would get from Valve Amplifier and works in exactly the same way as follows,The DRIVE GAIN controls the magnification of the signal from the instrument, at higher settings the Valve will be overdriven clipping and compressing the sound from the instrument, Higher harmonics and higher frequencies will be accentuated whilst the lower frequencies will be compressed. Just as in a valve amplifier this will be accompanied by a drastic increase in volume dependant entirely on the setting of the gain control. The -3db Pad switch is used in conjunction with the input level control to suit the instrument in use, Low output basses will not require the use of the Pad