Just wanted to give a little report on the modifications I had done to my Spector. I changed out the pre amp in my Spector Euro 5. I took out the tone pump (2 volumes, 1bass and 1treble, boost only) and put in an EMG BQC system which has volume, blend, and midrange with frequency dial, treble and bass. All controls have center detent with cut and boost. I did not change the pick-ups that came with the bass (EMG 40DC x 2). WOW, what a difference, I have a ton of flexibility with this system. It really does sound like another bass. The midrange selector alone was worth the upgrade. There are also dip switches for the treble dial that allow you to choose from 4 different frequencies. I am sure it will take me a while to find all the tones that are possible, but so far so Good.